Grow your Squish Squad with the Brush Buddies Squishmallows Sonic Toothbrush! Perfect for kids and adults alike, the soft toothbrush delivers a powerful clean and cleans plaque more effectively than a manual toothbrush. Rounded bristle tips help to protect the enamel of your teeth and delicate gums. Remember to change your toothbrush every 3 months and after being sick to fight bacteria build-up.