Specification Brand : Chicago Die Casting Label : Chicago Die Casting Manufacturer : Chicago Die Casting MaterialType : Zinc Model : Zinc Die Cast NumberOfItems : 1 PackageDimensions_Weight : 0.78 PackageDimensions : L:5.25 X W:4.00 X H:1.25 PartNumber : 400A5 ProductGroup : BISS Basic ProductTypeName : PULLEYS Publisher : Chicago Die Casting Size : 4 SmallImage_Height : 55 SmallImage_URL : https://m.media-amazon.com/images/I/21Z-zCdM0dL._SL75_.jpg SmallImage_Width : 75 Studio : Chicago Die Casting Title : 4" x 1/2" Bore, No Keyway, A-Groove, Chicago Die Cast Pulley Weight : 0.8 WeightUnit : pounds