Tronixpro 72mm Pro Series Snap On Lens Cap For Olympus 12-60mm f/2.8-4 ED SWD Zuiko Zoom Lens, Olympus 11-22mm f/2.8-3.5 ED Lens, Olympus Zoom Super Wide Angle 9-18mm f/4-5.6 ED Zuiko Zoom Lens This lens cap protects lens surface from dust & shock during storage. Unique snap on design allows easy installation onto the lens & one-step removal from the lens. It fits directly onto the lens with a double-action spring design. Microfiber Cloth 72mm Snap On Lens Cap