Speks Unblocks Black Set of 4 Unbelievably Magnetic Stress Relief Blocks for Kids and Adults

This was perfect for both my 3 year old and 1.5 year old to play with on a road trip. It wouldn’t have worked without a “play tray,” but they each have one. They flipped them around forever. Just wish there had been a few more.

Good quality. Bought this for my little brother who likes it!