72mm to 77mm Camera Filter Ring Step-Up Ring Filter Adapter 72mm to 77mm Metal Step-Up Ring for All Brands 77mm UV ND CPL Filter

【1】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】The first number of an adapter ring is always the lens thread size,the second number is the filter size of the accessory. 【3】How do I find my filter thread size? Your lens thread size will be printed underneath your lens cap or written somewhere on the lens barrel. Please do make sure to order the correct size otherwise it will not fit on your camera lens. 【4】Compatibility: Compatible with all 52mm camera lenses & 67mm accessories. 【5】30-day quality assurance, worry-free returns and exchanges, please contact us if you have any questions, thank you