1. Material: rubber 2. Rubber groove surface with good grip, not easy to slip 3. The front wheel adopts honeycomb design, good heat dissipation and shock absorption performance 4. Solid tires are not inflatable and do not fall off, no need to worry about being punctured, maintenance-free 5. Strong and wear-resistant material, long service life 6. Simple and explosion-proof installation, no special tools required 7. Size: about 147 x 33.5mm 8. Bore depth: 40mm 9. Weight: about 330g
