Features: Efficient Conveyor Design: This white belt conveyor uses electric power for smooth item movement in educational demonstrations. Constructed with strong PVC and metal materials, it proposals stability during classroom activities with adjustable speeds from 1.8-7.6cm/s. Crafted from PP plastic, this compact conveyor belt is light yet robust, suits various experimental needs. Ideal for physics educators, students, and researcher, this device supports a wide array of frictional force experiments. Perfectly suited for school laboratories, research institutions, and home education setups, it enhances the understanding of physical concepts through hands on learning. With its easy to use design and automatic counting display, this conveyor belt becomes essential tool in any scientific exploration or educational setting. Specifications: Component: PVC, Metal Size: Approx.49x7.2x13cm/19.29x2.83x5.12inch Adapter Working Potential: 110-230v Swiftest Speed: 7.6cm/s Slowest Speed: 1.8cm/s Motor Speed: 116RPM Motor Power: 15W Package Includes: 1 Set Desktop Conveyor Model note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item. 3.Batteries are not included.