Specification Amount : 7.98 Binding : Jewelry Brand : Fotodiox Color : Black CurrencyCode : USD Label : Fotodiox Inc. Manufacturer : Fotodiox Inc. MaterialType : Metal MetalType : Aluminum Model : 04sr4958 PackageDimensions_Weight : 0.0440924524 PackageDimensions : L:3.4645669256 X W:2.9133858238 X H:0.1574803148 PartNumber : 04sr4958 ProductGroup : Photography ProductTypeName : RING Publisher : Fotodiox Inc. Size : 49-58 mm SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/3171r-joFiL._SL75_.jpg SmallImage_Width : 75 Studio : Fotodiox Inc. Title : Fotodiox Metal Step Up Ring, Anodized Black Metal 49mm-58mm, 49-58 mm Weight : 0 WeightUnit : pounds