Sof-Lex Diamond Pre-Polishing Spiral Wheels, Refill, Beige, 15/Pk, 5090Sof Lex Diamond Pre Polishing Spiral Wheel is a revolutionary polishing instrument with a flexible spiral construction that offers increased adaptability to all tooth surfaces, even in interproximal spaces. The pre polisher is designed with diamond impregnated rubber spirals that prepare the material for final polishing using the Sof Lex Diamond Polishing instrument as it smooths out roughs surfaces without the need for pastes. Sof Lex Diamond Pre