Check the listing for details. 43mm-39mm Step Down Ring Camera Lens Filter Adapter Ring Filter with Cloth. Condition: New. Listed at 11.90 USD. The camera lens adapter ring can be installed in front of the lens, allowing you to use filters and accessories different from the size of the camera lens. The adapter ring can change-over lenses of various sizes, so that you can share the same filter, shutter, additional lens, etc.SpecificationColor: BlackMaterial: Aluminum AlloySuitable for: all 43mm lenses and 39mm filtersOverall Size: 44x6mm/1.73x0.24inch(Dia.H)Male Thread: 43mm/1.69inchFemale Thread: 39mm/1.54inchPackage List: 2 x Filter Adapter Step Down Rings, 1 x Cleaning ClothAdvantage:The adapter ring is made of aluminum alloy and coated with matte black electroplated coating, which can resist corrosion and other wear elements often encountered in outdoor photography.The package comes with a cleaning cloth, convenient for you to clean your adapter when you replace it.