Tesla Model 3 umbrella holder

Even though I don't often use them, I like to keep a couple of umbrellas in the car - just in case. To keep them tucked away I made two holders to hang them just behind the seats under the parcel shelf. They fit into the roughly 16 mm holes at the ends and are secured in place by a screw through the middle.

Update 28/3-21. So I have this favourite umbrella which is a little shorter and wants to slide out sideways on cornering. To stop this from happening I added a smaller ring in the ring with a 10mm hole into which the tip fits just fine, shortening the distance and holding it in place.