About this 3D model

I've lost one of the caps of my Skirack on my Skoda Enyaq. As I couldn't find any existing models, I decided to make this a learning exercise. This is the first model i've created. I first tried to create a nicer profile, but ran into “solid” problems, and therefore simplified the model. I used Sketchup (Web) to create the STL. Then Bambu Studio to layout and print on my A1 Mini using black Generic PLA. Notes: These are not equal to the originals on the outside, so I recommend printing all 4, and swapping them all. They are quite a tight fit, but worked well for me