Specification Brand : Century Spring Label : Century Spring Manufacturer : Century Spring MaterialType : steel PackageDimensions_Weight : 0.35 PackageDimensions : L:6.25 X W:1.25 X H:1.25 PartNumber : C-261 ProductGroup : BISS Basic ProductTypeName : BISS Publisher : Century Spring SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41eQOUyKR-L._SL75_.jpg SmallImage_Width : 75 Studio : Century Spring Title : Century Spring C-261 5-1/2" Extension Springs 1-1/16" OD Weight : 0.4 WeightUnit : pounds