2 set Step-up ring:7 x 49mm 52mm 55mm 58mm 62mm 67mm 72mm 77mm Step-up ring & 1 x 43mm to 49m Step-up ring Special aviation aluminum alloy, high strength, impact resistance, twist and pressure.Surface treatment:high-mesh sand blasting machine and color quality pure matte.Ultra-low chemical residues, attached to a solid! Font Handling:Font clear mission, silk screening of non-mimeo, attached to a solid! Adapter ring is suitable for filters, close-up lenses and other attachments to lenses with different filter thread sizes. The Bower 43-49mm Step-Up Adapter Ring easily screws onto the front of any 43mm Lens, and allows you to convert to the 49mm threads of accessory items (such as filters, hoods, flashes and lens converters).Product Name:Step Up Adapter Ring;Material:Metal Male Thread:43mm/1.7 inch Female Thread:49mm/1.93 inch Size(Approx):51 x 6mm/2x 0.24 inch(Max.) Using Step Up And Rings To Take Better Pictures What is a step up ring Step up rings, also known as adaptor rings, allow you to use filters and accessories that are not the same size as your cameras lens. Lenses and filters come in a large range of types and sizes and unfortunately they don't always fit together correctly. Fortunately there is a step up or filter for any need. How step up rings work Step up rings provide a way to fit a larger diameter filter or accessory onto a smaller lens. The step up rings screws onto your lenses threading and provided a larger thread with with you can then attach other elements included more step up rings. How rings work rings work in the exact same way but instead provide a way to attach smaller accessories and filters to larger lenses. size:49mm/1.93 inch, 52mm/2.05 inch ,55mm/2.17 inch ,58mm/2.28 inch, 62mm/2.44 inch , 67mm/2.64 inch 72mm/ 2.83 inch ,77mm/3.03 inch colour:as shown Package Included: 1 x 49mm-52mm Step-up ring 1 x 52mm-55mm Step-up ring 1 x 55mm-58mm Step-up ring 1 x 58MM-62mm Step-up ring 1 x 62mm-67mm Step-up ring 1 x 67mm-72mm Step-up ring 1 x 72mm-77mm Step-up ring 1 x Step Up Adapter Ring Only the above package content, other products are not included. Note: Light 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. Adapter ring is suitable for filters, close-up lenses and other attachments to lenses with different filter thread sizes. Special aviation aluminum alloy, high strength, impact resistance, and pressure.Surface treatment:high-mesh sand blasting machine and color quality pure matte.Ultra-low chemical residues, attached to a solid! 2 set Step-up ring:7 x 49mm 52mm 55mm 58mm 62mm 67mm 72mm 77mm Step-up ring & 1 x 43mm to 49m Step-up ring Font Handling:Font clear mission, silk screening of non-mimeo, attached to a solid! The Bower 43-49mm Step-Up Adapter Ring easily screws onto the front of any 43mm Lens, and allows you to convert to the 49mm threads of accessory items (such as filters, hoods, flashes and lens converters).Product Name:Step Up Adapter Ring;Material:Metal