Rizhoz light-cure dental accessories kit is for composite layering aidsdental lab materialsRizhoz light cure dental accessories kit Rizhoz 5ml Oxy barrier is an air inhibition gel. avoid an oxygen inhibited layer on the composite surface. Rizhoz oxy barrier is colored in light blue. Rizhoz 8ml spacer is a spacer for plaster models, apply the spacer on the plaster die in order to form rubber like membrane and to ensure space for cement between the completed restoration and prepared tooth. Rizhoz 8ml sep for easy removal of polymerized