Simple Dual Spinner

This has been the first 3d model I made on Fusion 360. I was aiming at creating a very simple dual spinner that was also compact, and I think that I managed to design that. I don't own a 3d printer so I couldn't print it myself yet, I would be very happy if someone could make one and show me the result. I also advice to use caps, I didn't design those but there are very good design here on thingiverse that you can take them from. I plan on making some adjustments if I find some problem in the cu