Neatly organize and sort your space with the Seville Classics Commercial 7-Shelf Bin Rack Storage System. This uniquely patented design features 21 polypropylene (PP) bins, 4 bin dividers, 21 bin labels and 3" grey wheels (two locking). This convenient storage system can organize a variety of things include tools, hardware, papers and documents, produce, office and school supplies, etc. This versatile mobile bin rack system is certified by the NSF to NSF/ANSI Standard 2 - Food Equipment, for commercial use. Ideal for use in garages, warehouse, mail rooms, schools, offices, work centers and retail environments. Do NOT move bin rack while loaded. 21 slide-out polypropylene bins with locking feature (6) X-Large and (15) Large bin sorters (labels included) Industrial-strength steel wire construction for heavy-duty storage Certified by the NSF to NSF/ANSI Standard 2 - Food Equipment Locking casters allow for easy positioning in garages, warehouses, and commercial workspaces Includes dividers and bin labels for organizing storage your way Platinum powder-coat epoxy finish Shelves adjust at 1" increments Includes 4 casters (with 2 locking)No tools required for assembly