Designed to protect your lens while you use it. Functional in all situations, whether it is an intensive hiking experience, a studio shoot or at home photography, your lens will be protected against bumps. Included is a Lens Ring and a Lens Bumper. The Lens Ring is flexible and stretchy in order to fit most lenses. Whereas the Lens Bumper is specially manufactured per filter diameter size: 52mm, 58mm, 62mm, 67mm, 72mm and 77mm.