Keep your teeth and gums healthy with GUM Sonic Power Toothbrush Refills Pack x2. The ultra-fine, soft bristles clean over 45 times deeper below the gum line than conventional bristles, providing a deep and effective cleaning. The modern design and compact head help achieve better cleaning and provide daily oral hygiene. The brush vibrates at 12,000 cycles/minute, gently cleaning teeth and stimulating gums. The ultrasonic filaments are 50% more effective in accessing interdental spaces. Suitable for children over 6 years old.