Good clock replacement: Ideal for repairing, replacing, or assembling a clock. Simple style clock movement: High-quality quartz movement ensures reliable performance. Simple design for easy installation and use. Wide application: Suitable for repairing, replacing, or creating home clocks. Compatible with various DIY clock projects, including craft clocks, frameless wall clocks, three-dimensional embroidery clocks, and other clockmaking applications. A perfect choice for DIY clock kits, clock accessories, and replacement parts. Energy efficient and accurate timekeeping. Excellent DIY clock supply: Ideal for replacing broken clock components or used as material for handmade clock projects. Type: Clock Movements Power: 1.5V AA battery (not included) Total Shaft Length: 31mm / 1.22in, Thread Length: 24mm / 0.95in, suitable for clock panels with a thickness of 16–21mm / 0.6–0.8in. Instructions: 1. Attach the clock movement to the surface to be installed. 2. Install the movement aligned to the standard 12 o'clock position. 3. Insert the battery after pulling out the positioning pin from the back of the movement. (Do not insert the battery before pulling out the locking pin.) Dimensions: Total shaft length: 31mm, Thread length: 24mm Material: Plastic + Aluminum Color: Black + Red Package Contents: 1 x Clock Movement 2 x Hour Hands 2 x Minute Hands 1 x Second Hand 2 x Rubber Gaskets 2 x Metal Gaskets 2 x Screw Caps 1 x Second Hand Nut The package includes only the items listed above; other items are not included. Note: Lighting and display differences may cause slight variations in color between the product and the image. Measurement error allowance: +/- 1–3cm.