Features: Pneumatic low wind resistance design.
Features1: The buffer O-ring protects the rim
Features2: perfectly solves the problem of loosening.
Features3: Using aluminum alloy material
Features4: lightweight design
Features5: riding more effortlessly.
Features6: on the dynamic balance of the wheel set
Features7: easy installation
Size: 10.0 cm * 10.0 cm * 1.0 cm
Package Includes: A Valve Nut With Tool Set