Perpetual motion machine. I could keep watching it forever.
Marble Perpetual Machine is a very unique, one-of-a-kind toy/decor gadget.

Amaze your friends and make them scratch their heads with these clever toys. Everyone will love it.

Product Description:
– Material: the Wooden parts are made of Doussie (very high-quality wood). The wire is made from Stainless steel.
– Dimension: 7in*7in*4in/17cm*17cm*10cm (LxHxW)
– This product is powered by electromagnetic
– USB powered
– Color: Only the natural color is available. Please refer to the last listing photo. Please understand that the actual color of the final product may be different from the photo a little; every piece of wood is different.