Practical Tools: These pendulum clock movement replacement parts are designed for creating or repairing your own pendulum clock, allowing you to replace the mechanism and achieve a new look. Applicable Ocns: This pendulum clock movement repair kit is suitable for use in bedrooms, living rooms, study rooms, clubs, and bars. Note: This unit is designed to operate with 1.5V carbon zinc batteries only. Do not use high-current batteries or rechargeable batteries as they may damage the movement. Specification: Name: Pendulum Clock Movements Material: Plastic Color: Black Characteristic: Silent operation Battery: Requires 4 x 1.5V carbon zinc batteries (not included) Size Chart: Pendulum Drive Unit: 140x60mm / 5.51x2.36in Power Clock Movement: 56x56mm / 2.20x2.20in Music Box: 56mm / 2.20in Clock Hands: 59mm / 2.32in, 86mm / 3.39in, 81mm / 3.19in Package Contents: 1 x Pendulum Drive Unit 1 x Power Clock Movement 1 x Music Box 3 x Clock Hands The package includes only the items listed above; other accessories are not included. Note: Slight color differences may occur due to lighting and display variations. Measurement error allowed is +/- 1-3cm.