Towel Rail End Cap

This is a simple end cap to go on the end of a piece of metal tubing. I used these to make the ends of the tube for my [Towel Rail Extender](https://www.thingiverse.com/thing:4206395) look nice.

Set the outer diameter to match the outer diameter of the tubing, and the inner diameter to get a snug fit. Maybe add a dab of hot glue to keep it in place.