*Due to packaging redesign and improvements, these may not reflect exactly the product you receive* black tea*. made with real black tea essence within the bristle *bristles contain black tea extract (0.05%) Ultra slim tip: 2x more flexible bristle tips.** **vs regular brushes <0.01mm tips: designed for deep clean. ultrathin bristles reach up to 2x deeper between teeth* *vs regular, flat trim bristles. based on laboratory testing. 25mm small head: effectively cleans molar area.