Stacks ten high for maximum space savings. The higher the drawer system stacks, the more space, time & money you save. Steel framework interlocks vertically & horizontally to withstand the heaviest day-to-day usage. Our strongest system is also the easiest to assemble. Drawers snap together with poly-lock technology & are reinforced with steel wire. Steel frame & reinforced drawers ensure full drawers open & close smoothly. Box Style: n/a; Box Type: Storage; Material(s): Steel Frame; Strength: Heavy-Duty.