Product Name : Step Up Adapter Ring Material : Metal;Color : Black Male Thread : 77mm/3.03";Female Thread : 82mm/3.2" Size(Approx) : 83 x 7mm/3.2"x 0.28"(Max.D*H) Adapter ring is suitable for filters, close-up lenses and other attachments to lenses with different filter thread sizes. The Bower 77-82mm Step-Up Adapter Ring easily screws onto the front of any 77mm Lens, and allows you to convert to the 82mm threads of accessory items (such as filters, hoods, flashes and lens converters). Weight : 9g Package Content : 1 x Step Up Adapter Ring Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.