Be selfie-ready with whiter teeth in one week when you brush with the New & Improved Spinbrush PRO WHITEN Toothbrush (1). This brush head is specifically designed to whiten teeth and spins 50% faster than previous models. Other sleek design updates include a quieter experience and thinner handle than the previous model. Color-Wear bristles fade over time to help remind you when it's time to replace the brush head. Keep your handle to save money and plastic with Spinbrush brand refill packs! Adult toothbrush includes two (2) replaceable AA batteries. Spinbrush battery-powered toothbrushes are not tested on animals. Spin your way to a brighter smile! (1) When using regular toothpaste.