Improve your classroom's storage space with Sprogs' Mobile Adjustable Bookcase. Baltic Birch construction provides long-lasting durability, while rounded corners and a recessed back for stability keep kids safe. With two adjustable shelves and sturdy casters, this unit will bring versatility and convenience to your daycare or preschool classroom. Covered by a Lifetime warranty. Choose an assembled or unassembled model, with or without a lip around the upper edge.