1. Adopting honeycomb hole design, better shock absorption performance 2. Made of high-quality rubber material, sturdy and durable. 3. Not easy to deform, can be used for a long time 4. Wear-resistant and anti-skid tread pattern, effectively improve the grip of the tire, improve stability 5. Suitable for 8.5 x 2.0-3.0/56 slot tire 6. Material: rubber 7. Weight: about 837g 8. Outer diameter: about 20cm 9. Inner diameter: about 13.7cm 10. Width: about 6.7cm