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(3 Pack)

Note:

Please allow slightly difference due to manual measurement. Thanks