The GUM SONIC DAILY brush head makes it easier to clean hard-to-reach places in the mouth. The sonic vibration combined with the extended tapered bristles have been scientifically proven to reach 50% deeper between the teeth*, remove plaque from the gumline 47x more effectively** and leave gums and teeth feeling clean and fresh. The fine handle is ergonomically designed for a firm and comfortable grip, allowing the toothbrush to be precisely controlled and moved. The toothbrush is battery operated, easy to use and convenient to store.