Adjustable Reusable Spool

Getting tired of having to respool filament that comes on cardboard spools, especially when the size varies?I have created a Reusable Spool with a smaller inner diameter that allows different sized rings to be used to adjust the inner diameter.Inner diameter of the actual spool is 58.4mm.The ring I have designed slides into sockets within one side of the spool - and has an outer diameter of approximately 72.5mm, which fits the brand of Filament I specifically had issues with - Note: They now hav