Snap On Spool Holder Cap

This small piece is supposed to help with keeping your filament spool on, for example if you have a custom spool holder mount or if you've ever had trouble with to small of a rim. This shouldn't take more than 30 minutes to print, and only uses 4 grams of filament. 30% infill should be enough. I printed in pla hyper. This snaps on well and should stay without moving around. The diameter of my spool holder is about 3cm. I would love to hear your feedback and how well it works out!