shaft length is 20 mm (4/ 5 inches), thread length is 11.7 mm (9/ 20 inches) High torque clock mechanism: suitable for 4 - 8 mm (4/ 25 - 3/ 10 inches) thickness clock panel; You can drill a hole on other clock panel to DIY your personal style clock mechanism 3 Hands: clock, minute, second hand, White color can stand out you can get the time easily Good DIY clock replacement: the high torque clock is applicable to -, three-dimensional embroidery, craft clock, frameless draw clock, etc. Simple and austere design: they can be with beautiful and brilliant clock panel Replacement for the original clock You can this to some clocks stop working, or to replace some clock hand which had fell apart. Save your broken clock from trash bin. DIY material for handwork You can bore a hole on DIY wood plate which can be a clock panel and assemble the pieces. Make a clock out of your child's artwork and giving as a gift for Mother's or Father's Day. Easy and simple design Suitable for repairing, replacing or making a clock Material: plastic and aluminum : 1.5V AA 1 x battery (not included) Dimensions: Case size: approx. 55 x 55 x 16 mm (2.2 x 2.2 x 0.65 inches) hour hand length: approx. 82 mm (3.2 inches) minute hand length: approx. 105 mm (4.1 inches) second hand length: approx. 136 mm (5.3 inches) Package included: 1 x Quartz clock movement 1 x Second hand 1 x Minute hand 1 x Minute nut 1 x Hour hand 1 x Plastic washer 1 x washer 1 x nut Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.