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Description:
- Made of qualified aluminum alloy; wear resistance, strong tensile strength
- Corrosion and rust resistance, high strength and sturdy
- It is used to mount single chain wheel because the double chain wheel screws is too long to lock by wrench
- Suitable for bike headset, stem, and chain wheel changing
- Inner Diameter: 10mm/4inch; Outer Diameter: 12mm/5inch; Thickness: 2mm
Specification:
- Material: Aluminum Alloy
- Inner Diameter: Approx.10 mm / 0.39 inch
- Outer Diameter: 12mm/0.47 inch
- Thickness: Approx. 2mm / 0.08inch
Package Includes:
10 Bike Washers

Note:
Please allow slightly difference due to manual measurement. Thanks