Specification Brand : 80/20 Label : 80/20 Inc. Manufacturer : 80/20 Inc. MaterialType : Aluminum PackageDimensions_Weight : 2.20 PackageDimensions : L:7.00 X W:6.00 X H:5.00 PartNumber : 2147 ProductGroup : Home Improvement ProductTypeName : INDUSTRIAL_CASTERS Publisher : 80/20 Inc. SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/31dioA1jyoL._SL75_.jpg SmallImage_Width : 75 Studio : 80/20 Inc. Title : 2147, 15 Series, 5.5 Inch x 4 Inch Heavy Duty Flange Mount Caster Base Plate Weight : 2.2 WeightUnit : pounds