These prophy cups are used for polishing and removal of heavy stains. It is smooth, soft, with high torque gear to perform, will not skip or over heat and is long lasting. The exclusive soft and flexible Prophy Cup flares and flexes to contours of teeth to aid in selective stain removal and interproximal cleaning with less pressure and operator fatigue. With optimized size for easy access in hard to reach areas without compromising the paste holding capacity.