Product size: 15*15*10cm
Electronic Perpetual Motion, steel ball,USB charging cable
Kinetic Art: The Marble Perpetual Machine is a very unique toy/decorative gadget.
CREATIVE GIFT: Surprise your friends with this clever toy and make them scratch their heads. Everyone will love it. Material: Wooden parts are made of high quality wood. The wires are made of stainless steel. Desk Decor: Show some personality and express your love of science and physics by decorating your office space. Can also be contemplative and fun to watch! Education and Elegance: A Visual Display of Experience Power. Use it in the classroom and share the exciting world of physics and science with your friends and family!
1.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.
2.Please allow us 1-2 cm errors for sizes ,thanks for your understanding.