Clock Movement: High torque clock movement with hook, long shaft, long drive hands (10mm to 450mm) Total shaft length: 28mm (1-1/10 inch), thread length: 15.4mm (3/5 inch), suitable for 9 - 13mm (9/25 - 1/2 inch) thick clock panel Hole center to tip size: hour hand is approx. 203mm/ 8.0 inch long; The minute hand is about 305mm/ 12inch long Good DIY clock supply: suitable for repairing, replacing broken clock parts or as good handwork material to make a clock by yourself Warning: some clock parts are made of aluminum, please do not install them with too much pressure or they will be bent