Features: Size: The total shaft length is about 12mm/0.47inch, the thread length is about 5mm/0.2inch, and the jumping second movement is suitable for clock panels with a thickness of 2-3mm/0.08-0.12inch. Features of the clock core: accurate travel for time, daily error of 1 second, lifespan of 2-3 years, low power consumption, ordinary batteries can be used for 6 months (one AA battery is not included). EASY INSTALLATION: Pendulum clock movement kits are easy to install; with a simple and elegant design, these replacement parts are perfect for different styles of clock stands. Suitable for craft clocks, porcelain crystal paintings, repair and replacement, DIY home decoration craft clocks, etc. Note: Please refer to the pointer installation diagram for the installation method of the pointer. After the three pins are installed, the three pins should be parallel when viewed from the side, and it is better not to for touch the pins. Package Includes: 1x Clock Movement 3 Set Clock Hands 1x Pendulum Specifications: Material: Plastic Color: Black/Red Shaft Length: Approx. 12mm/0.47inch (Thread 5mm/0.2') Applicable to 2-3mm/0.08-0.12inch Panel Thickness Panel Diameter: Approx. 25-30cm /9.84-11.81inch Pendulum Size: Approx. 150x60mm/5.91x2.36inch note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.