Zooth Children Toothbrush, Powerpuff Girls, Soft, [1-5 Yrs] SET of 4 Set of 4 ZoothBrushes as photo, For children 1-5 Yrs ZoothBrush is fun and easy to use. At Zooth we add character Zooth makes healthy fun. Dentists recommend replacing your toothbrush every 3 months.