Clock movement details: high torque clock movement replacement with hook, long shaft, drive long clock hands (10 mm to 450 mm) | Total shaft length: 23 mm (1/ 10 inches), with thread length 11.7 mm (9/ 20 inches), jump second movement suits for 4 - 8 mm (4/ 25 - 3/ 10 inches) thickness clock panel; Please check the size of the clock movement prior to purchase to verify whether it can fit over your clock | Size from the hole center to the tip: the hour hand is approx. 203 mm/ 8.0 inches long; The minute hand is about 305 mm/ 12 inches in length; please check the size of your item before buying | Package contents: 1 clock movement with hook, 2 hands and some mounting hardware, coming with specially designed cardboard box and instructions | Warm notice: there are some clock parts made of aluminum, please do not install them with too much pressure, otherwise they will be bent