Description:

【Science Learning Toys】: Our perpetual motion machine is an educational science tool that not only sparks interest and exploration in physics, but also demonstrates the laws of momentum and energy conservation.
【Wide Application】: Perpetual motion machine desk toy with 5pcs steel balls is a great desktop decoration for living rooms, bedrooms, studies, or offices.
【USB Powered】: Home table decoration powered by USB, our wooden model of the perpetual motion machine is a minimalist design.
【Smooth】: The edges of our wooden perpetual motion machine are carefully polished to be smooth and clean, with no rough edges,.
【Premium Material】: Perpetual Motion Device is made of quality material, long term to use.

Size Chart:

15cmx10cmx15cm/5.91inchx3.94inchx5.91inch

Package Includes:

1 Perpetual Motion Toy
1 USB Cable
5 Steel Balls

Note:

Please allow slightly errors 1-2cm differences due to manual measurement.