Pack of four replacement heads for Ordo Sonic+ electric toothbrushes. Individually rounded, high-quality bristles are cut to cup each tooth for a gentle yet effective clean, while the silicone polishing element helps remove surface stains. Click-fit design lets you replace heads quickly and securely. Rinse each brush head before first use and after every use. Dentists recommend replacing brush heads every two to three months, or sooner if bristles become frayed.