This classic plastic CA kit is a comprehensive assortment for finishing and polishing direct resins.10 shapes for a complete finishing and polishing system.Dura-Green silicon carbide stones for adjusting.Dura-White aluminum oxide stones for finishing.CompoSite silicone points are are impregnated with aluminum oxide for polishing.Contra-Angle. Use CompoSite Polishing Kit contains: Dura-Green Stones (CN1 and FL2) , Dura-White Stones (CN1 and FL2) , 6 CompoSite Points and 2 CompoSite Fine Points.