Decorative and fanciful items for covering of, and for use in connection with protective helmets, excluding stickers; Goggle retention clips for protective helmets; Lenses for protective face shields; Lenses for welding helmets; Level measuring machines; Levelling rods; Optical glasses; Plumb levels; Protective ear covering shields; Protective eye pieces; Protective eyeglasses; Protective eyewear; Protective glasses; Protective spectacles; Protective work gloves; Spirit levels; Surveyors' lev...