1. The edge is designed with rounded corners, the rotation is smooth, and the fault tolerance rate is effectively improved
2. The fine-tuning spring of the central axis, the force is balanced, stable and durable, can be repeated 100,000 times and is more resistant to falling off
3. The splicing method is tight, effectively preventing the surface from shrinking and uneven
4. Concave-convex texture, reduce internal friction, effectively prevent flying edge phenomenon
5. ABS plastic, environmentally friendly and durable
6. Spring fine-tuning structure, adjust the feel according to your own needs
7. Avoid empty tracks and long cylindrical corners
8. Sticker-free design, feel better
9. Applicable age: 3 years old and above
10. Size: 6.6x6.6x6.6cm
11. Weight: about 116g