rubber knob (TPU)

I lost a rubber know that was covering a screw end to prevent rust.
This is a recreation.

inner diameter: 10mm+
outer diameter: 20mm
knob horizontal diameter at widest: 25mm
cavity length: 25mm (+5mm half dome)
total length: 35mm

ATTENTION:
Should be printed with TPU (felxibel material) and using around 1-3 vertical shells to keep is soft.
Also the less infill the softer it gets.
Print it slow (as with all TPU).
Print it with the half dome on the top and the ribbed part on the bottom.