4x deeper reach (Below the gumline compared to an ordinary flat trim toothbrush). Floss-Tip (This toothbrush does not replace flossing) bristles. Regular bristles vs. purple-ended tapered bristles. These purple-ended bristles gentle reach deep between teeth and along the gumline. Clean: Teeth. Tongue. Cheeks. Gums. This toothbrush does not replace flossing. Save water. www.colgate.com/savewater. www.colgate.com. Made in Switzerland.