The Philips Sonicare C3 Premium Plaque Defense brush heads are engineered to provide deep and effective cleaning. Featuring high-density, contoured bristles, they ensure maximum contact with tooth surfaces and reach deep between teeth to remove significantly more plaque compared to a manual toothbrush. These genuine replacement heads are designed to maintain optimal performance for three months. The set includes five brush heads, ensuring you have replacements ready to maintain superior oral hygiene standards over an extended period.