Sunlu Refillable Spool V-Spooler Insert

A Simple insert to allow the Sunlu Refillable spools to be used with the fantastic V-Spooler. I found I couldn't tighten down the inner section of the V Spooler sufficiently in order to re use spools from Sunlu. This insert fixes that problem. First ever upload so be gentle, but I hope it can help someone.