3-step diamond polishing system.
For best results on high performance ceramic, zirconia and pressed ceramic.
3 colours for a 3-step polishing :
Violet : coarse grit for smoothing and finishing
Petrol : medium grit for finishing and silky shine
Lime : fine grit for ultimate gloss
Introduction kit containing one of each polisher
Tech sheet : 
z-series-eng.pdf
Z-Series Polishers (knife edge) - Introduction Kit
- Manufacturer : Kenda