Just a sun visor. The material thickness had had most 0.5mm stronger. Can your fingers without much press are deformed. (Hello Chinese friends, there are sooo great materials in plastic injection molding which are not much more expensive, but much stronger) Otherwise the sun visor snaps on the lens in a well-Bayonet and shades the front lens from enough. This panel is for the Canon 18-55mm IS STM. Actually, an impertinence that Canon does not sell iris to other lens manufacturer can also yet. The original sun visor came to us out of the question, because the price is simply outrageous. For the price this sun visor scratch almost on the border, I'm willing to pay.