Tele 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.
It will fit for all 77mm filter size lens.

Specification

Thread (Inner Diameter): 77mm
Front size:82mm
Height:36mm
Made of metal
Color: Black
Compatible with: all lens with 77mm filter size

Package Included: