Features: Easy to install, convenient to use. 1pc AA Battery is need.(Not included) Replacement for old, damaged clock movement. Made of high quality material, have long service for time. Overall shaft length: 14.5mm, thread height 7mm, suitable for passing through 4mm thick panel. Specifications: Material: ABS Size: Approx. 56x56.7x16 mm/2.20x2.23x0.63 in Solar movement parameters: Travel for time accuracy: ±25Sec/Month Current consumption: Less than 150μA Operating temperature: -10℃ to 60℃ Weight: Approx. 25g Second hand output torque: ≤0.6gf-cm (1.5V) Minutes hand output torque: ≤30gf-cm (1.5V) Pointer specification requirements: Second hand length/weight: ≤130mm, ≤2g Minutes hand length/weight: ≤160mm, ≤6g Second hand unbalanced moment: ≤0.15gf-cm Minutes hand unbalanced moment: ≤6gf-cm Package Includes: 1pc Clock Movement note: 1pc AA Battery is need.(Not included) Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.