Ball Joint Cover

Cover for ball joint to prevent the ingress of dirt and dust. Made it to fit the wishbone ball joint for a Volvo S40 II but could be scaled to the measurements you need.

Small End Diameter = 20.3mm
Big End Diameter = 18.5mm
Height = 30mm

For those with no background in maths, to re size to your measurements use this:

(Your Measurement ÷ Original Measurement) X Original Measurement

Disclaimer: as of making this post I haven't actually tried it on my car but in theory it should work.