Quantum Storage Systems WR12-109GN 12-Tier Complete Wire Shelving System with 33 QSB109 Green Bins, Chrome Finish, 12" Width x 36" Length x 74" Height All welded construction with additional wire trussing for high strength characteristics Wire allows air to circulate and light to penetrate for increased product visibility 600 to 800 lbs capacity per shelf Bins made in USA Measures 12" width by 36" length by 74" height