For 3mm axles.
Comes with 4 M3 x 3mm set screws.
7.2mm diameter x 3.6mm thick.
Weighs 0.3g.
![](https://www.electricdreams.com/Shop/images/description/1060-34173-65101-1.png)
Designed for use with with ball bearings (single or double flanged).
Can also be used as a crown stopper for any brass, bronze, steel, plastic or aluminum bushing.