1. beautiful design 2. screw into the lens 3. metal material 4. black and silver color Lens hoods are primarily designed to prevent unwanted ... of some extra protection from accidental impact.The wide-angle metal lens hood is made of black-anodized aluminum with light-absorbing flat ... ,62mm,67mm,72mm,77mm,82mm,86mm Screw in wide angle metal lens hood 49mm,52mm,55mm,58mm,62mm,67mm,72mm,77mm,82mm,86mm