Plastic pendulum drive unit is highly durable, and can be remained for a long time. This pendulum drive unit provides a stable effect for your pendulum installation, adding a touch of elegance to your clock. The easy installation process is simple, making it convenient for anyone to use. Features - Color:Black -Material:Plastic - Size: 10.90X5.60X2.15cm/4.28X2.20X0.84in -Note: The battery is not included. (1 x AA battery) -Frequency:32.768KHz. -Work voltage: 1.25v-1.7v. -Work temperature: -10 degree centigrade-50 degree centigrade. -Peripheral output frequency: 0.5Hz. - output torque: >=1. -cm(1.5v). -Minute hand output torque: >=60gf-cm(1.5v). -Power: 1.5v. -Average power :under 160ampere at 1.5v. -Loss moment: <=0.15g-cm 6g- -The plastic construction of the pendulum drive unit ensures durability and longevity for your clocks. -The extended lifespan of your clock is with the use of sleek pendulum drive units. -The simple color of this unit adds a touch of sophistication and style to your clocks. -Perfect for enhancing the functionality of your clocks. A must-have accessory for clock enthusiasts. -This pendulum clock drive unit is a great replacement, providing you with professional component for your clocks. Package list: 1 x Pendulum Drive Unit