The Quantum Storage Systems BC212469M wire bin cart with swivel casters has two shelves and seven pairs of adjustable slide channels; suitable for use with pull-out bins or trays (both sold separately) to transport, store, and dispense items. This unit has an open wire design that offers visibility of contents, permits air circulation in the work space, and resists dust build-up. The cart's slide channels are made of welded steel wire for strength, and they adjust in 1" increments to hold up to seven DG93060 plastic pull-out bins (sold separately). The wire shelves are made of welded steel and reinforced with wire trusses for strength. This wire bin cart has four swivel casters with brakes on two of the casters for control and maneuverability. The 5" x 1-1/4" casters are made of polyurethane to resist abrasion and wear. Four non-marking rubber donut bumpers help protect walls and furniture from damage. A chrome finish resists dirt build up and corrosion and provides durability. The wire shelving in this unit is NSF International-certified for food equipment for dry storage. This cart typically is used in the food service, hospital, and maintenance industries, but can be used for other applications to sort, store, and dispense items.The assembled unit is 69 x 24 x 21 inches (H x W x D). (H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.) The wire shelves each have an 800 lb. capacity; total cart capacity should not exceed 1,200 lb. The cart requires assembly and comes with instructions; no tools are needed. Bin shelf carts are typically used to sort and store items in bin compartments, to transport those items, and to dispense them to help organize work environments. These carts commonly consist of a frame with open shelves or slide channels and pull-out bins or baskets. Bin shelf carts are used in medical, industrial, and office settings, among others.Quantum Storage Systems manufacturers and supplies storage bins, storage bin systems, and steel and wire shelving for storage applications. The company is based in Miami, FL.