Features: Fine design: Adopt simple and novel design, the clock movement kit is made from reliable material, which provides beneficial conditions for you to replace clock parts and DIY clocks. Method of usage: To begin with, you need to choose the hour hand you like and make sure the size is right, then insert the hour hand, minute hand, and seconds hand into the movement in turn, paying attention to the tip of the hour hand pointing to 12 o’clock, and keep your hands parallel, and finally, you should adjust the time according to the local time. Efficacious impacts: Using these useful parts to DIY clocks, you can give full play to your creativity and improve your hands-on exercise ability, it is a nice chance to inspire your enthusiasm for handmade art. Sizes from the center of the hole to the tip: Hour hand length: About 115 mm/ 4.53 inches, 100 mm/ 3.94 inches, 88 mm/ 3.64 inches, 95 mm/ 3.74 inches, 82 mm/ 3.23 inches, 65 mm/ 2.65 inches Minute hand length: About 145 mm/ 5.7 inches, 133 mm/ 5.24 inches, 118 mm/ 4.65 inches, 125 mm/ 4.92 inches, 105 mm/ 4.13 inches, 91 mm/ 3.58 inches Seconds hand length: About 100 mm/ 3.94 inches, 115 mm/ 4.53 inches, 118 mm/ 4.65 inches, 103 mm/ 4.06 inches Second caps: About 7 mm/ 0.28 inches Specifications: Material: ABS and aluminum Power: 1 piece of 1.5V AA battery (not included) Package includes: 6 Sets clock hands 4 Pieces quartz clock movement mechanisms 4 Sets mini accessories Note: This package does not contain batteries. Be careful not to bend the hands with too much pressure. These parts are peaked, please keep away from children.