Gear Drive Car DIY Scientific Pack DIY Educational Electric Gear Toy Car for Children less than br more than

Feature: 1. Do your own knowledge and lay a good base for learning mathematics and physics in the future. 2. Can stimulate children"s interest in learning and curiosity. 3. Ecological, non-toxic, non-polluting wood materials, safe to use. 4. Gear drive is a pair of gears of the same modulus (tooth shape) are combined with each other to transmit the dynamic force from the first to second to complete the transmission of power. Gear transmission refers to a device that transmits motion and power from a gear pair. 5. Gear is one of the most widely used mechanical transmission methods in modern equipment. The gear drive works by meshing the teeth with the teeth. 6. Gear driver can realize the transmission between any two axes of parallel axis, intersecting axis, staggered axis, etc., which is also impossible for belt drive and chain drive. Specification: Item Type:Gear Drive Car Battery:2 x AA Battery(Not Included) Package List: 2 x Beam8 x Axle Sleeve3 x Gear1 x Tape1 x Motor1 x Battery Case4 x Wheel3 x Rod1 x Users Manual