Optimize your use of space and maximize your storage capacity. Safety positioning locators simplify secure bin placement and transport. Each shelf holds four 9G60 40-cup bins, two 9G57 100-cup bins or one 9G58 200-cup bin (sold separately). Meets UL tip and threshold standards (load bottom shelf first). Color: Chrome; Caster/Glide/Wheel: Two 5" TPR Locking Casters; Two 5" TPR Swivel Casters; Material: Steel; Overall Width: 18".