1. The finished handlebar can control the direction of the tire and the tire can slide. 2. Can develop children's ability to use the brain, grasp, and develop intelligence. 3. Special design for children, 3D color instructions are easier to assemble. 4. Suitable for children up to 6 years of age. 5. A total of 158 pieces. 6. Size: 13.2x4.2x6.6cm.