Offex WTV tuffy carts are constructed from an engineered thermoplastic resin, injection molded, that will not chip, warp, crack, rust or peel. Shelves and legs are made from recycled material. 18"D x 24"W shelves 1.5"thick. 0.25" safety retaining lip and a raised texture surface to enhance product placement and ensure minimal sliding. Legs are 1.5" square. Four 4" silent roll, full swivel ball, heavy duty 4" casters two with locking brake.