Specification Amount : 7.98 Binding : Jewelry Brand : Fotodiox Color : Black CurrencyCode : USD Label : Fotodiox Inc. Manufacturer : Fotodiox Inc. MaterialType : Black Anodized Aluminum MetalType : Aluminum Model : 04sr7277 PackageDimensions_Weight : 0.1 PackageDimensions : L:7.299999992553999212598426 X W:2.99999999694 X H:0.99999999898 PartNumber : 04sr7277 ProductGroup : Photography ProductTypeName : RING Publisher : Fotodiox Inc. Size : 72-77 mm SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/31Ri0uhZIVL._SL75_.jpg SmallImage_Width : 75 Studio : Fotodiox Inc. Title : Fotodiox Metal Step Up Ring, Anodized Black Metal 72mm-77mm, 72-77 mm Weight : 0.1 WeightUnit : pounds