Hinged combination offers lots of storage. Includes sixteen tote trays (13"L x 10-1/2"W x 4-1/2"D), child-safe, easy to use, lockable clasp system and locking casters. Store blocks, toys, books and more! Made of 3/4" Baltic Birch plywood with a 1/8" Fibrex board backing. Rounded corners with 2 locking and 2 non-locking casters, as an added safety feature in the classroom. Ships fully assembled. 96"L x 15"D x 38"H. Greenguard certified. Lifetime warranty on wood components.