Specification Brand : Chicago Die Casting Label : Chicago Die Casting Manufacturer : Chicago Die Casting MaterialType : Zinc MetalType : Cast Iron Model : Zinc Die Cast NumberOfItems : 1 PackageDimensions_Weight : 0.50926782522 PackageDimensions : L:3.699999996226 X W:2.599999997348 X H:1.299999998674 PartNumber : 250A5 ProductGroup : BISS Basic ProductTypeName : PULLEYS Publisher : Chicago Die Casting Size : 2.5 SmallImage_Height : 55 SmallImage_URL : https://m.media-amazon.com/images/I/21Z-zCdM0dL._SL75_.jpg SmallImage_Width : 75 Studio : Chicago Die Casting Title : 2-1/2" x 1/2" Bore, No Keyway, A-Groove, Chicago Die Cast Pulley. 100% Made in The USA! Weight : 0.5 WeightUnit : pounds