Seville Classics Commercial-Grade NSF-Certified Bin Rack Shop Tool Storage Steel Wire Shelving System, 12, Gray DIMENSIONS — 25” W x 14.25” D x 56” H 7 TIERS — Shelving system includes seven steel wire shelves (25” x 14”) in a durable silver powder coated finish. 12 BINS — Featuring 12 removable high-impact polypropylene (HIPP) gray bins (10.5” W x 14” D x 7” H), made of 20% post-consumer recycled content; Plus 2 bin dividers and 12 bin labels. MOBILE SYSTEM – Durable 3” diameter rubber wheels (two locking) allow for easy mobility. PATENTED BIN TILT LOCKING DESIGN — The bins feature a patented design (US Pat. #7,325,697) with a tilt locking feature allowing easy access to the bin’s contents. WEIGHT CAPACITY — 500 lbs. for the entire system; 25 lbs. per bin or 71.4 lbs. per shelf. NSF CERTIFIED – Bin rack system is NSF-certified for commercial use.