lens cap
circular or square shape black or grey textured surface a loop or tab for easy removal may have a logo or brand imprinted on it often has a rubber or plastic rim designed to fit a specific lens size
lens cap which has circular or square shape lens cap which has black or grey lens cap which has textured surface lens cap which is a loop or tab for easy removal lens cap which may have a logo or brand imprinted on it lens cap which often has a rubber or plastic rim lens cap which has designed to fit a specific lens size