Check the listing for details. 58mm Male 55mm Female Step Down Ring Adapter for ND IR DSLR Lenses, Black. Condition: New. Listed at 17.38 USD. This step-down Ring adapter allows smaller aperture lenses to share the same filters, lens hoods, additional lenses, and other accessories. It also helps reduce the lens aperture, making it a versatile solution for various photography setups. Works with ND, IR, DSLR lenses, and more.SpecificationColor: BlackMaterial: Aluminum Alloy, PlasticMale Thread Diameter: 58mm / 2.28 InchFemale Thread Diameter: 55mm / 2.17 InchHeight: 5.5mm / 0.22 InchPacking List: 1 Pcs x Step Down RingAdvantageThis step-down ring is made of durable anodized aluminum alloy, offering high strength, impact resistance, and excellent durability against twisting and pressure, ensuring long-lasting performance without deformation. The precision-polished surface prevents wobbling and cross-threading, while the compact design ensures easy, secure installation.