1. Material: aluminum alloy + carbon fiber + chromium molybdenum steel bearing 2. Use: Universal bicycle threaded port 3. Features: lightweight, widened design, durable, non-slip, dust-proof, scratch-resistant, left and right signs 4. Chrome-molybdenum steel shaft, universal threaded port, stable and firm, not easy to loosen 5. Highly polished surface, smooth and textured 6. CNC aluminum alloy material, lightweight body, scratch-resistant and wear-resistant 7. Large tread design, fit the soles of the feet and ride better 8. Carbon fiber wrapped bearing, strong and wear-resistant 9. Sealed bearings, waterproof and windproof, no fear of bad weather 10. There are 8 stainless steel anti-skid studs on each side to increase the grip and prevent slipping 11. Weight: about 278 grams per pair 12. Dimensions: 9.9x11.7x1.7 cm
