Clock Movement: High torque hook movement, long shaft, drive long clock hands (10mm to 450mm) Clock shaft total length: 28mm (9/10 inch), thread length: 15.4mm (3/5 inch), suitable for 9-13mm (9/25-1/2 inch) clock plate thickness Size from the center of the hole to the tip: the hour hand is approx. 203mm/ 8.0 inch long; the minute hand is approx. 305mm/ 12 inch. Good supply of DIY clocks: suitable for repairing, replacing broken parts of a clock, or as good DIY materials for making a clock by yourself < p>Important Note: There are some clock parts made of aluminum, please do not install them with too much pressure, otherwise they will be bent.