JJC LN-52W 52mm Metal Lens Hood For Panasonic G VARIO 14-42mm 1:3.5-5.6 Nikon AF-S 18-55MM 1:3.5-5.6G Wide Angle Lens Prevent glare by stopping light from coming into the lens at side angles? Improves contrast and image quality Protects lens from scratches and impacts Material:Metal 52mm*72mm*20mm