Feature: 1. EFFICIENT SHADING: The interior of the camera lens hood is matte finished, which can effectively reduce reflections and provide you with better shading for your shooting. 2. FUNCTION: During the shooting process, it can block unwanted incoming light, and can effectively inhibit the generation of ghosting and flare to improve the quality of shooting. 3. PREMIUM MATERIAL: It is designed with aluminum alloy bayonet, which has high strength and durability, and is not easy to be deformed and damaged. With high mounting accuracy, it can be firmly fixed on the lens. 4. LENS PROTECTING: It not only shades the light, but also effectively protects the camera lens and prevents fingers from accidentally touching the lens. In some cases, it can also shield the lens from wind, sand, rain and snow. 5. NOTE: The caliber size of this hood is 40.5MM, users need to choose the appropriate size of the hood according to the size of the specific lens caliber, to ensure perfect fit. Specification: Item Type: Lens Hood Material: Aluminum Alloy, ABS Caliber: 40.5mm / 1.6in Front Cover Size: 49mm / 1.93in Recommended Lens Focal Length: 25mm / 1in Or More Color: Silver. Package List: 1 x Lens Hood1 x Instruction Manual Note: In order to avoid vignetting, this hood is not suitable for ultra wide angle lenses below 18MM focal length. It is recommended to use 25MM ultra wide angle lens to match this hood.