1、The frame is made of good quality aluminum alloy, sturdy, durable and corrosion-resistant. 2、Adopts premium optical glass with multi-layer coating, reducing dust, moisture, and scratches from reaching lens elements. 3、Lens cap and other accessories can be mounted with thread in front of the lens frame. 4、The MRC-UV lens can eliminate the interference of interference of ultraviolet ray to CCD and help improve the clarity and the effect of color reproduction. Especially useful in areas of high altitude or snow. 5、Multiple mount thread choices. Exquisite workmanship, perfect fit the camera lens. Features: 1. The frame is made of good quality aluminum alloy, sturdy, durable and corrosion-resistant. 2. Adopts premium optical glass with multi-layer coating, reducing dust, moisture, and scratches from reaching lens elements. 3. Lens cap and other accessories can be mounted with thread in front of the lens frame. 4. The MRC-UV lens can eliminate the interference of interference of ultraviolet ray to CCD and help improve the clarity and the effect of color reproduction. Especially useful in areas of high altitude or snow. 5. Multiple mount thread choices. Exquisite workmanship, perfect fit the camera lens. Specification: Brand: Fengbiao Type: UV Lens Material: Aluminum Alloy + Optical Glass Color: Black Optional Model: FB-MRC-UV-40.5mm, FB-MRC-UV-49mm, FB-MRC-UV-52mm, FB-MRC-UV-55mm, FB-MRC-UV-58mm, FB-MRC-UV-62mm, FB-MRC-UV-67mm, FB-MRC-UV-72mm, FB-MRC-UV-77mm, FB-MRC-UV-82mm Packing List: 1 x UV Lens Protector