Quality appears to be normal. They interlock snugly and while I haven't tested this with the Lego brand, they appear to be the right size to work with Lego. My problem with them is that they are almost exclusively small pieces. I opened a bag of 6 or 7 in a box and there were about 130 1x1s, about 65 2x1s and 55 of everything else together which I lined up so you can see how many each is. Until I open all the bags, they all seem to have the same contents. I bought them for a small project I'm doing and it just won't work to build that project let alone build anything. I will send these back.
30-Piece Edushape Soft Baby Blocks - Vibrant Multi-Colored Stacking Blocks For Building & Learning Fun!
34 Review
Guidecraft Jr. Rainbow Blocks: 40 Piece Set - Kids Learning & Educational Toys, Stacking Blocks
14 Review
π§± Discover the Fun with JaxoJoy Foam Building Blocks: Recommended for Endless Creativity!
9 Review
Edushape Floating Blocks Bath Toy Set: Teach Cause And Effect, Reasoning & Cognitive Skills For Infants, Babies & Toddlers
38 Review
80 Piece Quercetti Tecno Building Set
14 Review
PANLOS Robot Building Kit - 723 Pieces Of STEM Learning Fun For Kids
11 Review
655 PCS STEM Robot Building Toy Set - 6-In-1 Fire Truck Kit For Kids Age 4-8
19 Review
STEM Learning Building Bricks Toys - 832 PCS 8-In-1 Robot Building Kit For Kids, Including Armored Police Car Engineering Construction Vehicle Blocks Set, Ideal For Boys & Girls Age 4-8
14 Review