Storage cart is perfect for keeping sets of small blocks organized. Multiple 12″” deep cubbies keep blocks easily accessible and make cleanup a snap when playtime is over. Cubbie widths are 22-3/4″” or 11″”, and the height is 6-1/2″”. Birch cart is designed specifically for use with ECR4Kids blocks. Casters are included for mobility. Storage cart is recommended for children ages 3 and up.