Spinbrush Battery Toothbrushes have a patented dual action brush head, featuring two moving parts to help clean deep between your teeth and gums, for superior cleaning. Never wonder when you need to change your brush head again! ARM & HAMMER Spinbrush Pro Clean battery toothbrush features replaceable brush heads with Color-Wear bristles: See the colors fade when it's time to switch them out. Then, just pop one on to continue removing 70% more plaque in hard-to-reach places. This family pack has enough to get you and a loved one going for months of deep cleaning. Spinbrush toothbrushes are approved by the ADA, American Dental Association, so you can have the confidence they are safe an effective. And, ARM & HAMMER Spinbrush uses DURACELL batteries, which are included in each brush handle and easily replaceable. Brush with confidence with Spinbrush.