Safco Products 5246BL Boltless Steel Shelving 48"W x 18"D x 72"H, Black Extra strength 48"W x 18"D steel shelving unit Set up as a 5 shelf, 72" high storage unit or 36" high workbench Weight capacity 750 lbs per shelf evenly distributed Rubber mallet for assembly, requires no nuts or bolts Steel construction with durable powder coat finish