The Original USA Made Faultless #2 pencil clip for a standard size pencil (internal diameter of the clip is .285 +/-.005), and some stick pens and stylus. Push-on / Push off lever for one handed action. Beautiful nickel plated steel clip that own't lose its tension. Many applications and a favorite for woodworkers, maintenance people, craftspeople. Great for golf pencils too. Clip to a pocket, spiral notebook, brim of your hat, clipboard, calendar, or wherever you wish.It has a Push-on / Push off lever for one handed action.