Additional Details ------------------------------ Product description: Clear (M) style flagpole winch for internal halyard 12-3/4 Inch diameter flagpoles. The (M) winch is a maintenance free, gearless, self locking winch that can handle extreme loads and flagpole heights of up to 80 feet. There is no flagpole door to open when using an M-winch, because it is flush with the flagpole's surface and only unlocks when the crank handle hits the keyhole. (Made in the U.S.A.)