Oral-B Toothbrush Ultrathin Pro Dense Gum Care Pack 3's Product Details Extra Soft 352X more flexible tips for a gentle clean1. <0.01mm tips : Designed for deep clean.2. Cleans along gum line : Clinically Proven to effectively clean along the gum line.3. 25mm small head : Effectively clean molar area.4.Ultrathin bristles reach up to 2X deeper between teeth. Place of Origin China Directions Brush your teeth at least twice a day. Ingredients Meterial for Bristle: PBT Meterial for Handle: PET & TPE