Can penetrate into deep space between teeth & gums, removing plaque effectively without hurting the gums. Small head size to reach every corner of teeth for an easy comfortable clean. Patented soft & fully tapered bristles (bristle tip is 1/20 the normal size) that penetrates deeper in between teeth and along gum-lines to remove plaque, ensuring a comfortable, satisfying and almost professional clean. Compact 0.22mm Toothbrush