These Luxor STC series utility carts are made of high density polyethylene structural foam molded plastic shelves and legs that won't stain, scratch, dent or rust. Features a retaining lip around the back and sides of flat shelves. Includes four heavy duty 4” casters, two with brake. Has a push handle molded into the top shelf. 24"W x 18"D shelves. Tub shelves are 2 3/4" deep.This Blue STC111 cart is three tub shelves 18”D x 24”W x 36 1/2”H. Clearance between shelves is 11 3/4". Easy assembly. Made in USA.