CamDesign Rear Lens Cap and Body Cap Set for Olympus OM System. Fits OM-1, OM-2, OM-3, OM-4, OM-10, OM-20, OM-30, OM-40, OM-G cameras and OM lens systems + CamDesign Wristband Lens Focus Ring Plastic construction Fits OM-1, OM-2, OM-3, OM-4, OM-10, OM-20, OM-30, OM-40, OM-G cameras Fits OM lens system