Canon - ET-101 Lens Hood for RF 800mm f/11 IS STM Lens - Black

BOWER Pro Series Tulip Lens Hood and Lens Cap for Most 58mm Lenses: Compatible with most 58mm lenses; reduces glare and other sun interference; shields lens from the elements when not in use; tulip hood shape; lens cap

Lens hood for the RF 8800mm f/11 IS STM lens that helps to block sunlight or other light sources to prevent glare and lens flare, as well as help protect the lens itself from scratches and the elements.