Tronixpro 67mm Pro Series Soft Rubber Lens Hood For Canon EF 100mm f/2.8L Macro IS USM Lens, Canon 18-135mm f/3.5-5.6 EF-S IS STM Lens, Canon EF 70-300mm f/4-5.6L IS USM Lens This lens hood prevents image-degrading lens flare by blocking stray light from striking the surface of the lens It protects lenses from expensive front element damage Protects the front barrel from the inevitable impacts against walls, door frames, and other real-life obstacles. Microfiber Cloth 67mm Soft Rubber Lens Hood