Specification Amount : 7.98 Binding : Jewelry Brand : Fotodiox Color : Black CurrencyCode : USD Label : Fotodiox Inc. Manufacturer : Fotodiox Inc. MaterialType : Metal MetalType : Aluminum Model : 04sr6777 PackageDimensions_Weight : 0.05 PackageDimensions : L:3.249999996685 X W:3.249999996685 X H:0.199999999796 PartNumber : 04sr6777 ProductGroup : Photography ProductTypeName : RING Publisher : Fotodiox Inc. Size : 67-77 mm SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/31CArGrGguL._SL75_.jpg SmallImage_Width : 75 Studio : Fotodiox Inc. Title : Fotodiox Metal Step Up Ring, Anodized Black Metal 67mm-77mm, 67-77 mm Weight : 0.1 WeightUnit : pounds