Mennon A-ST 55 Screw Mount 55mm Hood for Telephoto 70-210mm Lens, Black ABS series "A-ST 55" lens hood with screw mount can be attached to the 55mm lens or filter thread made of extremely shock and wear resistant, high-strength engineering ABS plastics high quality smooth outside and mate inside finish suitable for standard telephoto lens (70-210mm focal distance) of most 35mm SLR cameras Screw hood to the thread of the lens or filter .