Replacement Heads Gum® Sonic Day - White Color For una extraordinary oral hygiene sensation day after day, we recommend replacing the head of your GUM SONIC DAILY battery toothbrush (formerly known as GUM ActiVital® Sonic) every 3 months, when the bristles start to wear down or after a cold or flu.| The special bi-level and tapered bristles of this toothbrush are 50% more effective at reaching interproximal spaces and remove 47 times more plaque below the gum line - achieving better cleaning results than a traditional manual toothbrush. The power of sonic vibrations helps gently clean teeth and stimulate gums.| MAIN FEATURES 2 replacement heads compatible with the GUM SONIC DAILY battery toothbrush, GUM ActiVital Sonic, and GUM SONIC SENSITIVE| Soft bi-level bristles for optimal cleaning results | 50% more effective at cleaning between interproximal spaces compared to a traditional manual toothbrush with flat bristles| Easily replaceable heads to reduce plastic waste| It is recommended to replace the heads every 3 months| Available in white or black| Pack size with 2 pieces.