Introducing Kaplan Alfresco Gyms, a new concept which brings physical activity into the everyday curriculum in your classroom! Each kit is a complete play area designed to be developmentally appropriate for all ages and levels of gross motor development. Made of high density, lightweight plastic, these units will last for years without fading or warping. Simple slot-and-groove connection system for simple assembly. Includes twelve items: two "U" slot-in blocks, two "Y" slot-in blocks, one beam, three stair/slopes, two wave beams, one tunnel beam, one mini-bridge, and instruction booklet.