Pack of two hygienically sealed replacement brush heads to be used exclusively with TAO Clean Umma Sonic Toothbrush & Cleaning Station | The patented design has 3 spiraling edge points of contact on every bristle, providing enhanced stain-fighting and plaque cleansing capabilities over 50% better than ordinary brush heads. | Plus the Sonic toothbrush does all the work of 40,000 brush strokes a minute to remove plaque and buildup for a fresher, healthier smile. | Sanitize after use by docking in the innovative TAO Clean Patented Cleaning Station | Brush heads must be changed at least every 3 months