Fight plaque head-on with Equate Advanced Clean Replacement Brush Heads! Engineered with high-density bristles these heads zero in on challenging areas in your mouth. The Blue Replace-Me bristles gradually fade to signal the need for replacement. Each package includes four (4) brush heads suitable for use with most Philips Sonicare electric toothbrushes. Unleash the radiance of your smile with Equate Advanced Clean Replacement Brush Heads. Making the right health decisions can be challenging. With a complete range of products and simple solutions Equate allows you to take care of your family with confidence. Suitable for ages 12 & up.