Encourage interactive play with the PlayFoam 4 Pack Classic from Learning Resources INC. Safe for children, with no mess involved, this fun and colorful foam is a great way for children to express their creativity while developing tactile skills. Recommended for ages 3 years and older, this set includes 4 foam balls that kids can squish, smash, flatten, and then start all over again---the foam will not dry out. This no mess formula makes it perfect for on the go---won't stick to carpet, car seats, or furniture. Comes in 4 colors: blue, orange, purple, and green.