Compatibility: The lens hood for Canon EF 75-300mm f/4-5.6 III, EF 75-300mm f/4-5.6 III USM, EF-S 55-250mm f/4-5.6 IS, EF-S 55-250mm f/4-5.6 IS II lens replaces Canon ET-60 hood
Flexibility: Reverse attaching to the lens saves storage space. And it allows you to put on a filter and a lens cap
Professional Design: A non-glare matte finish on the interior surface to further limit lens flare so no vignetting will show with the hood on
Improvement: To prevent stray light from entering the lens, improving your contrast and image quality
Protection: With the extended lens end, it can protect the lens from moisture, wind-blown debris & impact