Air-abrasion cavity preparation system. Treat multiple quadrants upon diagnosis and without anesthetic. Multiple tip sizes and fully adjustable powder and pressure. Small, precise, and minimal powder flow. 0.015 tip is half the size of the smallest bur. Highest rated system by major reviewers. Largest selling unit of all. 1-year warranty. Dimensions: 6-1/2W x 5-1/2H x 9L.