Find a spot for all of your students’ supplies with Wood Designs’ Three-Inch Letter Tray Mobile Storage Unit. Because of the low-profile shelves, it’s easy for children to access their items. Sturdy birch construction, rounded edges and a UV finish make this shelving a safe choice for classrooms. Available in two sizes and with or without cubby trays. Ships assembled on four casters, bringing convenient mobility to every classroom. Lifetime warranty. Choose from two sizes with or without cubby trays.