Specification Brand : SYRATION Label : SY America Manufacturer : SY America MaterialType : Polyurethane,Steel PartNumber : 1-1 ProductGroup : BISS Basic ProductTypeName : INDUSTRIAL_CASTERS Publisher : SY America Size : 5 inch SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41sz3o1a3vL._SL75_.jpg SmallImage_Width : 75 Studio : SY America Title : 5"X 2"Heavy Duty Casters Wheels-Industrial Casters Polyurethane Caster with Strong Load-bearing Capacity 4000LB,heavy duty casters set of 4,Widely Used in Furniture,WorkBrench,Tool Box(4SWIVEL)