Pursonic Replacement Electric Toothbrush Heads, target plaque to remove up to 100% more plaque vs. a regular manual toothbrush Compatible with the RET200 and rET20USB & RET20USB-BK Pack of 3 Replacement Toothbrush heads. As one of Pursonics , the rbh200 target plaque to remove up to 100% more plaque vs. a regular manual toothbrush. The unique bristles reach deep between teeth to remove plaque and leave your whole mouth cleaner than a regular manual toothbrush. Compatible with RET200 model RET20USB &RET20USB-BK. Uses Dupont bristles for soft sensitive brushing.