GREENGUARD Gold certified. Works great with rice, cereal, sand, water, and many other sensory materials. Rugged 8" deep plastic liner tray. Cover the tub with the provided lid and use this as a work surface. Constructed from Birch Plywood, and coated with our exclusive Tuff-Gloss™ UV finish. Fully rounded corners and edges for maximum safety. 18"H x 28"W x 15"D. Simple leg attachment required. Lifetime warranty. Made in the U.S.A.