[Premium Quality]: This brand new washer is made of high quality aluminum alloy material, which is heat resistant, oil and It is not easy to break, has quality and superior durability.; [15Pcs /Set]: The package contains 15 O-rings, which provide you with an economical replacement, suitable for various applications, enough for your daily use and replacement.; [Product Size]: The is about 2 mm thick, the outer diameter is about 39.8 mm, and the inner diameter is about 34.9 mm. It is lightweight, easy to install and remove.; [Scope of Applications]: The washer kit can be applied to BB axle, and it is suitable for adjusting the chassis, steering wheel or hub, the gasket will not accumulate dust or oxidation.; [2 Colors]: The flywheel gasket has 2 colors (red, black) for you to choose, different color settings meet your different needs, ensuring that your is full of appeal.

What's in the box
15 x Headset Spacers