AMS Spool Retainer

AMS lite spool retainer, keeps the spools that like to slide off by slipping on over the AMS and turning it extending the jaws of the AMS lite to hold the spool in place. 1 set for thinner spools and one set for thicker spools,The thicker ones work great on any Kingroon filament rolls as they fit right in the hole of the spool flush.