High-quality materials, exquisite craftsmanship, safe, reliable and durable, long service life, complete specifications, convenient and flexible use, and better cost performance.

The product belongs to the parts of the assembled car, the picture is the finished product after assembling, the pro received the product is a package of parts package, you need to do their own hands and minds to learn to make the finished.

In the production process, the first brain conception, and then hand-made, this process strengthens the children's imagination.

Let the children understand the knowledge of scientific principles, easy to install and easy to operate.

Product Principle:
Free brush cart is a simple but strange cart, it uses the principle of eccentricity, so that the ordinary brush at home into a centrifugal movement of the cart, through the small flinging pieces to produce centrifugal force to make the whole cart vibration, brush friction is small, so that it moves, different ground will have a different effect of movement. We give three kinds of small dumping parts, the effect is different ! The larger the size, the greater the speed and force of the swing, but the more power it consumes and the more it can cause a little heat!