I was skeptical at first, as it seemed too good to be true. I had a tooth extracted and was on a fruit smoothie diet for a couple of weeks. I noticed the tartar build up had darkened significantly and needed a way to remove it. Swissklip was everything it said it would be and then some! Painless, efficient, effective and easy to use! The handle is perfectly balanced making it easy to maneuver. This product is well worth it!