Cavitron THINsert Focused Spray Ultrasonic Insert 30K. Designed for light to moderate calculus and deplaquing. Delivers ultrasonic power with a tip that is 47% thinner than FSI Slimline-10. Unique 9 degree backbend design allows for easier adaptation. Provides access in difficult areas, including misalignments, interproximal surfaces, and areas of tight tissues, without loss of tactile sensation. Designed to be used at all power levels. Single insert