Specification Brand : Ch Label : Chicago Die Casting Manufacturer : Chicago Die Casting MaterialType : Zinc MetalType : Cast Iron Model : Zinc Die Cast NumberOfItems : 1 PackageDimensions_Weight : 0.62 PackageDimensions : L:4.80 X W:3.63 X H:1.25 PartNumber : 350A7 ProductGroup : BISS Basic ProductTypeName : PULLEYS Publisher : Chicago Die Casting Size : 3.5 SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41fZCqf65OL._SL75_.jpg SmallImage_Width : 56 Studio : Chicago Die Casting Title : 3-1/2" x 3/4" Bore, with Keyway, A-Groove, Chicago Die Cast Pulley. 100% Made in The USA! Weight : 0.6 WeightUnit : pounds