Precision Design ET-60 Lens Hood for Canon EF 75-300mm f/4.0-5.6 USM, II, II USM, III USM Lenses and Canon EF-S 55-250mm IS Lens Replacement for Canon ET-60 Lens Hood Compatible with Canon EF 75-300mm f/4.0-5.6 USM, II, II USM, III USM Lenses and Canon EF-S 55-250mm IS Lens Prevent unwanted stray light from entering the lens Extra protection from accidental impact Designed to match the specific focal length of the lens