Plaque defense. For hard to reach places. Advanced design. Bi-level bristles and unique angle. Purposefully designed with a signature angled neck and tapered head to clean hard to reach places. Bi-level bristles clean and remove plaque along the gum line. Signature angled neck extends behind back teeth 60% further (vs. The leading brush based on lab data). Ergonomic grip. Www.reachtoothbrush.com.