Filament Sleeve

I printed the spool holder and nut which is a great part but it is a little undersized for my filament spools. Even when I tighten the nut, the spool can shift downward during printing and it unspools and can cause problems especially on new spools which have some weight to them.
I just created a sleeve for it in TinkerCAD and tried it out. It fit fine and really helps tighten the filament spool on the roll. No unravels so far with it.