Specification Amount : 53.91 Binding : Misc. Brand : Climax Metals CurrencyCode : USD Label : Climax Metal Products Company Manufacturer : Climax Metal Products Company Model : SDA-137 NumberOfItems : 1 PackageDimensions_Weight : 3.2000000000000006 PackageDimensions : L:5.599999994287999212598426 X W:2.199999997756000393700787 X H:1.99999999796 PartNumber : SDA-137 ProductGroup : BISS Basic ProductTypeName : SHAFT_COLLAR Publisher : Climax Metal Products Company SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41JvQic1TaL._SL75_.jpg SmallImage_Width : 75 Studio : Climax Metal Products Company Title : Climax Metals Part SDA-137 Mild Steel, Black Oxide Plating Step Down Adapter, 1 3/8 inch bore, 1 1/8 inch OD, 2 3/8 inch Length, 1/4-28 x 3/4 Set Screw Weight : 3.2 WeightUnit : pounds