GONGEBuild N' Balance Beginner Set - Complete Balancing Course For Sensory Exploration And Balance Training - Set of 10 pieces

I bought these for our son to play with this summer indoors (a way to beat the heat). We've had so much fun setting up obstacle courses using this and the blue planks (purchased through an online resale website). We've mixed and matched the yellow balance tops with the red balanced tops. I've created inclines and declines. My son uses the planks for race car tracks when not walking on them.My favorite part is the balance tops stack nicely for tight storage.