High torque quartz clock movements with your choice from 4 threaded shafts. These models have the extended shaft for extra clearance when running long balanced hands. Your choice from 4 different threaded shaft lengths from drop down window. Capable of running long hands to and including 17.75" balanced hands. This is a continuous motion high torque motor, silent, quiet, no stepping of gears. HANDS ARE NOT INCLUDED. Those of you with keen hearing will greatly appreciate it's quietness. Silent, no stepping of gears or clicking. Case size: 2-1/8"sq x 5/8" American "I" shaft movement, accepts standard hands. PLEASE BE ADVISED THAT NOT ALL MOTORS ACCEPT STANDARD HANDS. Hour hand center hole .198” diameter Minute hand center hole .158” x .112” (oblong shaped) Threaded shaft diameter: 5/16" Chose from 4 threaded shaft lengths: 1/4" (5mm) threaded shaft, total 5/8" including hand stem 7/16' (11mm) threaded shaft, total 13/16" including hand stem 9/16" (14mm) threaded shaft, total 15/16" including hand stem 15/16" (24mm) threaded shaft, total 1-1/4" including hand stem 3 yr. factory warranty on defects Requires one "AA" battery (not incl) Includes mounting hardware: rubber and brass washers, hex nut, kurl nut and closed end cap Please see my other listings for more high torque motors and long hands NOTE ON MEASURING:: Shaft length is threaded portion "B" (in picture), , not including hand stem "A". "B" is the threaded portion that must pass thru your clock face, plus a couple of threads to attach retaining (hex) nut. . HANDS: minute hand measured from end tip to center of mounting hole. MEASURING DIAL FOR HAND SIZE: measure from top of #12 to bottom of #6, divide in half. This will give your approx. minute hand length. I will attached photo(s) of assembly to your purchased email, or you can email me. PLEASE VERIFY YOUR MAILING ADDRESS. See other items PICTURED WITH METAL CLOCK HANGER...NOT INCLUDED