Specification Binding : Unknown Binding Brand : SY America Color : Silver Label : SY America Manufacturer : SY America MaterialType : Cast Iron Model : STL-5MO-2W-N NumberOfItems : 2 PackageDimensions_Weight : 9.21973179684 PackageDimensions : L:7.199999992656 X W:5.749999994135 X H:5.4699999944206 PartNumber : STL-5MO-2W-N ProductGroup : BISS Basic ProductTypeName : WHEEL Publisher : SY America Size : 5" [ 2 Wheels ] SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/31jrI0Z6nhL._SL75_.jpg SmallImage_Width : 74 Studio : SY America Title : SY America 5" 2 Pack, Heavy Duty Steel Cast Iron Caster Wheel with Rolling Bearing & Steel Bushing Extra Width 2 inches 1400 lbs Total Capacity (5 inches Pack of 2) Weight : 9.2 WeightUnit : pounds