Description: Features:brand new and high quality.A replacement 52mm to 48mm step down ring for your cameras.Convenient and easy to use.Access a wider variety of filters, adapters, hoods and so on.Special aviation aluminum alloy, high strength, impact resistance, twist and pressure.Surface treatment: high-mesh sand blasting machine and color quality pure matte black. Specifications:Item Type: 52mm To 48mm Step Down Filter RingsThe male thread to camera lens: 52mmThe female thread to filter: 48mmMaterial: Aluminium alloyShape: RoundType: Lens AdaptersColor: BlackQuantity: 1 PC (other accessories demo in the picture is not included) Note:1.Transition: 1cm=10mm=0.39inch2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank youPackage includes: (No retail package)1 X Step Down Filter Rings