- The Mega Bloks First Builders Big Building Bag packs 60 oversized blocks into a portable, reusable bag — making it one of the best value building toys for toddlers on the market.
- With a 4.89 out of 5 rating from over 400 reviews, this is one of the most consistently praised first building toys available.
- The bag itself is a genuine storage solution — not just packaging — which sets it apart from boxed sets that leave parents scrambling for somewhere to put everything.
- It comes in three colour variants — Classic, Pink, and Trendy — so there is an option to suit most preferences.
- Keep reading to find out how it holds up after months of use, whether the bag actually lasts, and how it compares to buying loose block sets.
Few toys earn a near-perfect score from hundreds of parents — and the Mega Bloks First Builders Big Building Bag is one of them.
Designed by Mattel, this Mega Bloks First Builders toy is a building set that is perfect for toddlers. It does not have complicated instructions or a specific goal for the build. Instead, it gives the kids a pile of large, chunky blocks and lets them use their imagination to build whatever they want. This simplicity is what makes it such a great toy for this age group.
Why the Mega Bloks Big Building Bag is a Great Buy
The Mega Bloks Big Building Bag is a great value for its price. It’s not just a bag of blocks; it’s a whole play system that includes building, creative play, color recognition, and cleanup. Many parents who have bought pricier sets have said that the Big Building Bag provided as much or even more fun for their child, and at a lower cost.
60 Blocks for Just$31 RRP
The Mega Bloks Big Building Bag Classic Edition retails at around $31 and comes with 60 blocks. This works out to about 25p per block, which is a great deal compared to many other branded building toys for this age group. For a first building toy, 60 blocks is a really good amount — there’s enough to build with, enough to share, and enough that losing a few to the sofa cushions won’t be a big deal.
Choose from Classic, Pink, or Trendy Color Themes
There are three color themes available for the Big Building Bag: Classic, Pink, and Trendy. The Classic theme includes the traditional primary colors of red, yellow, blue, and green. The Pink theme uses softer, pastel colors, while the Trendy theme has a more modern color palette. All three themes come with the same number of 60 pieces and have the same block size and quality of construction.
Scored 4.89 Out of 5 From 400 Reviews
With an average score of 4.89 out of 5 from 400 reviews, it’s clear that this product is not a one-hit wonder. That level of consistency says a lot about a product. To break it down, 91% of reviewers gave it 5 stars, 6% gave it 4 stars, and only 1% gave it 3 stars — with almost no 2 or 1-star reviews. Parents consistently praised the quality of the blocks, the design of the bag, and how well the set keeps toddlers of all ages and stages engaged.
What’s Inside the Mega Bloks Big Building Bag?
When you first open the bag, you get a simple yet gratifying set of items. There are no instruction manuals, no small parts to organize, and no complicated pieces. Just blocks, ready to play with immediately.
Number of Blocks in the Bag
The bag contains 60 large blocks that are perfect for little builders. They are not the small standard Lego-style bricks — they are the larger, chunkier Mega Bloks size that is perfect for toddler hands. The blocks come in a variety of colours depending on which variant you choose, and they are all compatible with each other within the set. The quantity feels just right — enough to spark imagination but not too many that clean up becomes a hassle.
The Bag Is More Than Just Packaging
The bag is not just packaging to be thrown away. It is a real drawstring storage bag with a handle for carrying, made to be used over and over as the blocks’ home. This is more important than it might seem. One of the most common complaints parents have about building toy sets is storage — original boxes get ruined, lids won’t close, and pieces end up all over the place. The Big Building Bag fixes this problem right from the start.
The bag’s drawstring closure ensures that all the blocks are secure and the handle makes it easy to carry around. Whether you’re taking it on a car ride, to grandma’s house, or just to another room, it’s incredibly easy to transport. Many parents have mentioned in their reviews that the bag is one of their favourite parts of the product, which speaks volumes.
Toddler Durability Test
As we all know, toddlers are not gentle. Any toy that is designed for this age group needs to be able to withstand daily play. The Mega Bloks Big Building Bag holds up well, and that reputation for durability is a big part of why families come back to this brand again and again.
Block Size and Safety for Little Ones
The blocks are noticeably larger than standard building blocks, and this is by design. Each block is sized so that toddlers aged 1 to 5 can hold them comfortably without constantly dropping them, and more importantly, they are too large to present a choking hazard. The rounded edges mean there are no sharp corners to worry about during play, and the plastic used is sturdy without being heavy — so even if a block gets thrown (and it will), the risk of damage to furniture or injury to siblings is low.
Longevity of the Blocks
The blocks are made to withstand the test of time. The plastic does not become discoloured, scratched, or cracked easily with normal play, and the connection points still hold their grip even after hundreds of cycles of connecting and pulling. Many parents in reviews mention that their older children used Mega Bloks years ago and that the same blocks are still being used by younger siblings — this is probably the best endorsement of longevity that a toddler toy can get.
The bag is pretty durable as well, but it’s important to mention that the drawstring and stitching on the bag can wear down quicker than the blocks themselves if it’s frequently dragged across hard floors. The blocks will likely last longer than the bag, but it’s easy to find replacements and the bag is more than good enough for regular use.
Child-Friendly Connection Mechanism
Mega Bloks are designed for toddlers. They are engineered to click together firmly enough to stay in place during play, but not so tightly that a child can’t pull them apart without adult help. This is a delicate balance to strike. If the blocks connect too loosely, they fall apart immediately. If they connect too tightly, a frustrated two-year-old will be handing blocks to a parent every few minutes. Mega Bloks strikes the right balance, allowing young children to play independently.
Does the Bag Design Really Work?
It does — and it’s not a gimmick or a clever marketing trick. The bag format solves a real problem that parents of toddlers have every day: where do you put all these pieces? The bag with a drawstring means that the blocks have a place to go, and that place is portable, washable, and small enough to fit in a toy box, closet, or under a stroller.
It also makes clean-up time a breeze. Instead of scrambling to pick up individual blocks scattered across the room and stuffing them back into a cardboard box that never seems to close right, you simply gather everything into the bag, pull the drawstring, and voila, you’re finished. For parents, that convenience alone might be worth the cost of purchase.
Easy to Carry Around
One of the most convenient features of the Big Building Bag is its carry handle. This small addition makes it much easier for children to move their toys around. They can carry the bag themselves, which not only allows them to feel more responsible for their toys but also makes it easier to move the toys from one room to another or from one location to another. The handle is sturdy enough to carry 60 blocks without any strain and the bag is compact enough to fit into a large diaper bag or sit neatly in the footwell of a car.
Effortless Cleanup and Storage
When it comes to storage, this product really shines compared to traditional boxed building sets. Cardboard boxes can break down, lids can warp, and compartments can crack. The drawstring bag doesn’t do any of these things. It maintains its shape, it can be wiped clean, and it doesn’t take up any more room than the blocks themselves need.
Keeping things tidy with toddlers is easiest when it’s quick and straightforward. There’s no need to sort anything, no compartments to fill, and no lids to struggle with. You simply open the bag, put the blocks in, and close the drawstring. Even a two-year-old can do this, which makes cleaning up part of the fun rather than a fight at the end.
Who Will Enjoy This the Most?
Although the Mega Bloks Big Building Bag is officially recommended for children aged 1 to 5 years, the ideal age range is from about 18 months to 4 years. Younger children who are just beginning to explore their surroundings will enjoy mouthing the blocks and exploring their colours and textures. And since the blocks are large enough to be safe, this is completely fine. As children grow older and move into their second and third year, they will start to enjoy the building aspect of the blocks. They will love stacking the blocks, connecting them, knocking them down, and then rebuilding them.
Most children, by the time they reach 4 or 5 years old, are ready to graduate from the size of the blocks and are ready for smaller, more intricate building systems. The great thing is that Mega Bloks is part of a larger range, and the skills that are developed with the Big Building Bag — spatial awareness, fine motor control, patience, and creative thinking — will directly translate into confidence with more advanced building toys as they get older.
Comparing It to Purchasing Individual Block Sets
There are many other options for purchasing building blocks for toddlers. Loose sets, themed kits, and other brands all have their own advantages. However, the Big Building Bag stands up well to the competition, especially in terms of value, practicality, and the sheer number of blocks included for the price.
Price Per Block Compared to Boxed Sets
With each block in the Classic set costing about 25p, the Big Building Bag is a great value. Many similar toddler building sets, especially those with themed characters or specific builds, can cost a lot more per block and usually include fewer blocks in total. If you’re looking for a set that encourages creative play and includes as many blocks as possible for a reasonable price, the Big Building Bag is hard to top in its class.
Why Parents Prefer the Bag Format
While boxed sets may look impressive on a toy store shelf, they often don’t stand up to the test of toddler ownership. Lids go missing, corners get crushed, and within a few months, the box is typically no longer functional. The Big Building Bag avoids all of these issues. It’s a soft, flexible container that can withstand the daily rough and tumble of toddler life without breaking down like cardboard packaging.
Aside from its durability, the bag design promotes better tidying and ownership habits. When the storage solution is easy and satisfying to use, children are much more likely to help put toys away. This is no small matter when you live with a toddler – anything that makes the end-of-day clean-up battle easier is truly worthwhile.
The Mega Bloks Big Building Bag Is a Dependable First Building Toy
After examining every aspect of this product — the quality of the blocks, the design of the bag, the age appropriateness, the value, and the real-world feedback from hundreds of parents — the Mega Bloks First Builders Big Building Bag has earned its reputation. It isn’t fancy, it doesn’t light up or make sounds, and it doesn’t come with a specific build goal. What it does provide is exactly what toddlers need: a generous heap of safe, well-crafted blocks and the freedom to build whatever they can dream up.
With a 4.89 out of 5 rating from 400 reviews, this product is no fluke. It’s a toy that delivers on its promise time and time again, lasting for years and growing with your child from their first exploratory play to confident, imaginative building. If you’re in search of a first building toy that will actually get used, actually survive the toddler years, and actually be worth the investment — look no further.
Commonly Asked Questions
These are the questions most frequently asked by parents who are considering purchasing the Mega Bloks First Builders Big Building Bag. We’ve answered them as clearly and honestly as possible.
Who Can Use the Mega Bloks Big Building Bag?
According to the manufacturer, the Mega Bloks Big Building Bag is meant for kids from 1 to 5 years old. The big size of the blocks ensures that it is safe for kids who are still in the stage of putting things in their mouth. The simple mechanism of connecting and pulling apart the blocks is also easy for kids who are just starting to learn the fine motor skills required for building play.
In reality, children typically begin to actively enjoy building when they reach 18 months old. This is when they start to intentionally stack and connect blocks instead of just exploring them as objects. This toy continues to be engaging through the toddler years and into early childhood, making it a truly long-lasting purchase.
When most kids hit the age of 5 or 6, they’re usually prepared to graduate to tinier, more intricate building toys. The abilities they’ve developed with Mega Bloks — like spatial reasoning, hand-eye coordination, and imaginative problem-solving — provide them with a solid base for more sophisticated building toys.
What’s the Piece Count for the Mega Bloks Big Building Bag?
The Mega Bloks First Builders Big Building Bag comes with 60 large building blocks. The color mix depends on which of the three versions you pick — Classic, Pink, or Trendy — but all three have the same number of total pieces. Sixty blocks is a good number for a toddler building set, giving kids enough to build big, complex structures without the set feeling empty.
Can Mega Bloks Be Used With Duplo or Regular Lego?
Mega Bloks First Builders blocks are not officially designed to work with Duplo or regular Lego bricks. Although all three brands use a stud-and-tube connection system, the sizes and tolerances are different enough that they don’t reliably work together. Mega Bloks are designed to work within the Mega Bloks system, and for toddlers using the Big Building Bag, this isn’t a restriction — 60 blocks is plenty for open-ended play at this age without needing to add from another brand.
Will the Bag Last as a Long-Term Storage Option?
The bag is durable for everyday use, but it’s important to be realistic. The drawstring and stitching can start to wear out if the bag is consistently dragged on hard floors or overstuffed. The blocks will likely last longer than the bag. For most families who use the bag as it’s meant to be used — to carry and store the blocks, not as a toy to pull around — it works well and stays functional for the product’s lifespan.
Where Can You Purchase the Mega Bloks Big Building Bag?
The Mega Bloks First Builders Big Building Bag is sold at many large retailers. You can find it at large toy and general retailers, as well as online marketplaces, making it easy to compare prices and find the best deal available at the time of purchase.
Each of the three color options — Classic, Pink, and Trendy — are typically available through these outlets, but the availability of specific options may depend on the retailer and time of year. If you have a color preference, it’s a good idea to check the stock of all three, as the Pink and Trendy options can sometimes be more difficult to locate than the Classic.
When you’re shopping for a gift, the Classic version is a safe bet. It’s the most popular version and you can find it in just about every store. Plus, it’s almost always in stock, even when it’s not the holiday season.
It’s important to note that prices can fluctuate between different retailers, so it’s worth doing some comparison shopping before you buy. The suggested retail price of £14.99 is a good reference point — if you find it for less, it’s a good deal, but if it’s priced much higher, it’s worth questioning before you purchase.
The Mega Bloks brand is a product of Mattel, a company that specializes in creating building toys for children of all ages. They have a line of products called First Builders, which is specifically designed for toddlers and early learners. One of the products in this line is the Big Building Bag. If your child has enjoyed playing with the Big Building Bag and is ready for a new challenge, it would be a good idea to check out the other products in the First Builders line. They all use the same block format, but each product introduces new challenges and themes.
