Building Block Simulation Piece

Features:
The product bracket and the sphere are designed with hollowing out, so that the working track of the gear can be seen during operation.
By turning a three-hole knob on the side of the base, a gear turns the globe slowly, without any switch or electric.
Adopt fine quality natural wood, wood is firm, color is even, product has no peculiar smell, you can use it for a long time and do not need to change it often.
This product are made of a lot of precisions parts, which are combined with each other by the gears.
Good gift choice: It is the fine gift for you to sending it for your friends or your children for the Christmas, new year or birthday.