The Oclean Ultra Clean replacement brush heads are designed for use with all adult Oclean sonic toothbrushes, providing a reliable way to maintain your oral hygiene. This pack contains six white, oval-shaped heads featuring high-quality DuPont Tynex bristles. To help you track when it is time for a change, the heads include Pedex indicator bristles, with a recommended replacement every two to three months. These heads utilize a specialized 5° design to reach effectively below the gum line, while the diamond-ground bristle tips ensure a thorough clean. The integrated tongue cleaner adds an extra step to your routine for fresher breath. By combining these features, the brush heads aim to increase cleaning efficiency to 115% and reduce plaque by 40%, making them a practical choice for anyone looking to maximize the performance of their electric toothbrush.