A simple adapter to tightly fit the Gembird spool to Elegoo CC2

Outer diameter 60mm
Inner diameter 55mm

Why?
Elegoo Centauri Carbon 2 has these spool holders with springs in them to rewind the fillament after each use, if it does not spring back it, fillament will be in the nozzle after each print, making use of muluticolor prints look funny :-)