Includes the following: Canon ET-60 Lens Hood, only Specifications: Thread Size 58mm Dimensions (Diameter x Length): 70mm x 108mm Weight: 390 g Compatibility: For EF 75-300mm f-4-5.6 III, EF 75-300mm f-4-5.6 III USM, The Canon ET-60 Lens Hood is primarily designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens. In addition, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact. What's in the box ET-87 Lens hood Lens case LZ1326