Specification Amount : 17.98 Brand : SES CASTERS STANLEY E. SMITH COMPANY Color : Black CurrencyCode : USD Label : SES Casters Manufacturer : SES Casters MaterialType : Polyolefin Model : WPOXKK4.1XXXXXN1X NumberOfItems : 4 PackageDimensions_Weight : 1.00 PackageDimensions : L:9.00 X W:7.00 X H:5.00 PartNumber : WPOXKK4.1XXXXXN1X ProductGroup : Automotive Parts and Accessories ProductTypeName : WEIGHT_PLATE Publisher : SES Casters SmallImage_Height : 26 SmallImage_URL : https://m.media-amazon.com/images/I/31dVvczMLdL._SL75_.jpg SmallImage_Width : 75 Studio : SES Casters Title : Wheel Set | 4x1" Polyolefin with a 5/16" Bore | 600lbs Capacity Per Set Weight : 1 WeightUnit : pounds