General description This Quartz Pendulum Clock Movement is designed for DIY enthusiasts looking to create their own pendulum clock. It includes a music box speaker and operates on battery power, allowing for a unique and personalized clock design. Technical specifications Name: Pendulum Clock Movements Material: Plastic Color: Black Battery: 4x 1.5V Carbon Zinc Batteries (Not Included) Pendulum Drive Units Size: 140x60mm (5.51x2.36 inches) Power Clock Movement Size: 56x56mm (2.20x2.20 inches) Music Box Size: 56mm (2.20 inches) Hands Sizes: 59mm (2.32 inches), 86mm (3.39 inches), 81mm (3.19 inches) Measurement Error: +/- 1-3cm Compatibility and accessories Suitable for use with 1.5V Carbon Zinc batteries only Includes: 1 Pendulum Drive Unit, 1 Power Clock Movement, 1 Music Box, 3 Clock Hands Installation Designed for easy installation in DIY clock projects Usage Ideal for bedrooms, living rooms, study rooms, clubs, and bars Allows for customization of clock appearance and functionality