【Compatibility】Compatible with all 40.5mm camera lenses & 55mm screw mount accessories (such as filters, hoods, flashes and lens converters). Your lens thread size will be printed underneath your lens cap or written somewhere on the lens barrel. Make sure it is 40.5mm otherwise it will not fit your lens. | 【Problems Solved】The lens filter adapter rings allow you to fit a larger size (55mm) lens filter or other screw mount accessories onto a lens with a smaller diameter (40.5mm). The purpose is to increase the diameter of the lens, cost saving. | 【Material】Special aviation aluminum alloy, high strength, impact resistance, distortion and pressure resistance. Greatly reduces the main thickness and weight. The surface is subject to high mesh mechanical sandblasting, environmental protection anodizing, and the color is pure dumb black. | 【2 Pack & Cleaning Cloth】40.5mm Lens to 55mm Filter,and High-quality Soft Cleaning Cloth. | 【Guarantee】Provide return and replacement protection. Please contact us if you have any questions about the product (damaged items are received, installation is not successful, etc.), and we will give you a satisfactory service.