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🧩 Build brilliance, block by block — where creativity meets STEM!
The ECR4Kids 18-Piece Hollow Block Set features oversized, hollow birch plywood blocks designed to foster STEM learning and motor skills in toddlers and young children. Crafted with a durable, scratch-resistant finish and rounded edges for safety, these natural wooden blocks encourage open-ended play, spatial reasoning, and teamwork. Certified low-VOC and compliant with safety standards, this set is perfect for classrooms, playrooms, or homes aiming to inspire early engineering and math skills.












| ASIN | B002VLHQFI |
| Additional Features | Durable, Scratch Resistant |
| Age Range Description | 3 years + |
| Best Sellers Rank | #268,792 in Toys & Games ( See Top 100 in Toys & Games ) #660 in Toy Stacking Block Sets |
| Brand Name | ECR4Kids |
| Color | Natural |
| Customer Reviews | 4.6 4.6 out of 5 stars (123) |
| Educational Objective | STEM |
| Global Trade Identification Number | 00763960241707 |
| Included Components | Hollow Block Set |
| Is Assembly Required | No |
| Item Dimensions | 15.75 x 8 x 4 inches |
| Item Type Name | EDUCATIONAL_SUPPLIES |
| Item Weight | 36 Pounds |
| Manufacturer | ECR4Kids |
| Manufacturer Maximum Age (MONTHS) | 1500.0 |
| Manufacturer Minimum Age (MONTHS) | 36.0 |
| Manufacturer Part Number | ELR-0342 |
| Manufacturer Warranty Description | Other |
| Material Type | Hardwood |
| Model Name | ECR4Kids Big Hollow Block Set (18 Pieces) STEM Education Wooden Building Blocks |
| Model Number | ELR-0342 |
| Model Year | 2021 |
| Number of Pieces | 18 |
| Number of Players | More than one, unspecified |
| Operation Mode | manual |
| Power Source | manual |
| Set Name | 18-Piece Set |
| Size | 18 Piece Set - Large |
| Target Audience | Unisex Children |
| Theme | Education |
| Toy Building Block Type | Stacking Toy Building Block |
| UPC | 728131126573 763960241707 659223169843 |
J**S
Awesome blocks
Very nice size for my block center. Well made and a good price.
J**T
Beautiful Quality Blocks!
Holy moly these are great! Hands down best toy I’ve purchased. These are the perfect weigh and size for my four year old, heavy enough to satisfy his need to lug things around and light enough that they won’t hurt him when his structures fall. The fact that they’re hollow is genius, these have been parking garages, forts, helicopter landing pads, the North Pole, and “our new house” and we’ve only had them for 30 minutes. I was concerned that 18 wouldn’t be enough to build with but there are plenty or blocks for him to use. Great open ended play and fosters so much creativity! They are smooth and the coloring is beautiful. All corners are rounded and the fasteners are inset. I can tell these will last for years and years. So happy I found these!
T**K
Great idea!
An investment, but our son loves these! He's 21 months, and we've held back the triangles and largest rectangles for now (still gives him lots!) He's found many uses already. In less than 2 weeks they've been a tower, stepping stones, a road for cars, a foot stool at his arm chair, a step to stand on at his toy tool bench, a tunnel to put cars through, and a container to drop toys into (flat on floor with opening facing up). When we redid our deck, he carried around the 2 flat pieces and his hammer all day. Other reviews are right- these are just the right weight; light enough for him to carry and substantial enough to be satisfying. No sharp edges, well finished, and sturdy. There are some scratches on the surface of a few pieces that might have been there when we recieved them? Not obvious or bothersome to me though.
R**D
Best building toy ever!
Got these as a birthday present for my granddaughter who has a set at Waldorf school in Oregon. She is three. Her brother (five) immediately wanted to play with them and they have had many hours of great imaginative play. They are much larger than you think they are looking at the picture and came in a very large box. They are very well made and worth the price. However I bought them during the big Prime day for $65 less than they usually cost! I was so pleased! Highly recommended for children. I think they will still be using them several years from now to make roads, buildings, and anything else their imagination comes up with. The first thing my granddaughter did was make a house and deposited herself and her bears inside the house being very pleased with herself...please buy these for your children if you can afford them or ask family members to go in together to buy them as a Christmas or birthday present. They will last for years and be passed on to their children. Update: My grandchildren are much older now and still play with these blocks regularly. Est purchase I ever made for grandkids. They are heavy.
B**E
Stellar block set!
Silly expensive, however, these are one of the best toys you can get your kids if you can afford the splurge. My girls (1 & 3) have used these at least once, usually several times, a day since we have purchased them. So far, they prefer to use these for games where they arrange the blocks in various configurations on the floor and walk on them. Blocks are sturdy and holding up great to lots of rough play. I'm confident they will last a super long time and make a great hand me down gift for a friend once our girls have outgrown them. And such open ended play options! Love these blocks and the creativity they are inspiring!
K**R
Very cool!
These blocks are great! I was hesitant to buy them because the price for only 18 blocks seems to be a bit excessive but I decided to go for it because of other reviews. My little guy is going through a phase where he likes to manipulate large objects and test his strength. These blocks give him an outlet for that need, giving him something appropriate to lug around and they are fun to build with! Eighteen doesn't seem like many but it really is enough once you see them in person. There is a nice variety of blocks, giving options. The two flat boards are a little out of place with the other shapes, almost like they were scraps or just filler. Perhaps we will find more use for those as time goes on. I am most impressed by how responsive ecr4kids customer support is. I contacted them with a question/concern and my message was replied to in a timely and professional manner. I have several products for ecr4kids and have no complaints! Highly recommended!
J**S
Good Purchase
Good quality and sturdy!
S**E
Package used and defective
Very disappointed. I ordered a new set of these blocks in November 2024 and only received them February 2025. The blocks arrived all bunched up together in a Target box. To add injury to insult, the blocks were clearly used and defective. Not worth it.
L**S
Buen acabado
Trustpilot
3 weeks ago
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