OralB Ultrathin Green Tea Gum Care Toothbrush has individually tapered bristles that are infused with essence of green tea providing a soothing gentle and deep clean that improves your gum health in 14 days. Unlike most thin toothbrushes in the market OralB Ultrathin Green Tea Gum Care has bristles that are individually tapered at the tips to gently clean between teeth and below the gum line. Green Tea Made with real green tea essence within the bristle. Ultra Slim Tip 2 times more fle timesible bristle tips Vs regular brushes. 0.01mm tips Designed for deep clean. Ultrathin bristles reach up to 2 times deeper between teeth vs regular flat trim bristles. Based on laboratory testing. 25mm small head Effectively cleans molar area.