Oral – B Cross Action Brush Heads are perfectly angled for a deep clean in between teeth. The Criss Cross bristles are set at a 16 – degree angle to effectively clean along the gumline and reach deep between the teeth for 100 percent more plaque removal - Removes up to 100% more plaque vs. a regular manual toothbrush - Round head cleans better for healthier gums (*vs. a regular manual toothbrush)Perfectly angled bristles engineered for optimal tooth coverage - Replace your brush head every 3 months to relive that new brush feeling - The Cross - Action replacement brush heads are compatible with Oral – B Vitality, Oral – B Pro Series, Oral – B Smart Series, and Oral – B Genius - Experience the Cross Action brush heads designed by the #1 dentist recommended brand worldwide