Cavitron 30K FITGRIP Focused Spray PowerLINE series of ultrasonic inserts have a standard-sized tip that is specifically designed for efficiency and the removal of heavier deposits. Focused Spray technology Unique one-piece design allows the hygienist's fingers to naturally conform to the grip Larger grip diameter lessens muscle load and pinch force Rippled grip texture is designed to lessen the chance of slipping The flat beaver tip of the Powerline-3 is designed for use on calculus bridges and removal of heavy staining