This is a set of JLF aluminum shaft cover and dust washer made by KDiT.
They are made based on Sanwa's JLF-CD and have the same dimensions so they are fully compatible with the JLF series.
They also have an aluminum anodized finish, so your joystick will look very cool with these.
Aluminium shaft cover x1
Aluminium dust cover x1
that this product is not compatible with other series of JLF series
and SEIMITSU lever made by Sanwa Electronics.