- A combination of different grit size discs for contouring, finishing and high gloss polishing for composite, glass ionomers, amalgams, semi-precious and precious metals. - Long-lasting. - Made of durable polyester impregnated with aluminum oxide particles. - Kit contains 80 pcs: - 20 X Extra-Coarse. - 20 X Coarse. - 20 X Fine. - 20 X Extra-fine. **For further product information , please contact Chat Support**