Good clock replacement: Ideal for repairing, replacing, or creating a clock. Simple style clock movement: Reliable quartz movement with accurate timekeeping. Simple design, easy to install and use. Wide application: Suitable for repairing, replacing, or making home clocks; applicable to three-dimensional embroidery, craft clocks, frameless dial clocks, clock mechanisms, and more. Perfect for DIY clock projects, clock accessories, and replacement parts. Energy efficient and precise timing. Great DIY clock supply: Suitable for repairing or replacing broken clock components, or as a 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 16–21mm / 0.6–0.8in thick. Instructions: 1. Attach the clock movement to the item to be installed. 2. Install according to the standard 12 o'clock position. 3. Pull out the positioning pin from the back of the movement, then insert the battery. (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 Hand 2 x Minute Hand 1 x Second Hand 2 x Rubber Gasket 2 x Metal Gasket 2 x Screw Cap 1 x Second Hand Nut Only the items listed are included; other items are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error is +/- 1–3cm.