Experience improved plaque removal and whitening with AquaSonic's Precision Brush Heads. Their precisely angled bristles, with alternating hard and soft areas, are gentler on gums and harder on teeth. Achieve 40% better plaque removal and 20% improved whitening. Compatible with AquaSonic Elite, Elite Duo, and Precision. Includes 4 black Precision brush heads with caps. | Aquasonic | | Precision ProFlex Electric Toothbrush Replacement Brush Heads | 4 Pack | Black | Best Buy