This Bio Toothbrush has a handle made from 100% corn starch (non GMO) and soft nylon (recyclable) bristles. It\'s the first of its kind in the world, designed for children. Use minimum pressure and brush in a circular motion. Use with Jack N\' Jill natural toothpaste made with organic flavors & Calendula. Replace toothbrush every 6-8 weeks or earlier if worn. Replace after illness. Rinse thoroughly before & after use. Sterilize often. Allow bristles to air dry. Do not use without adult supervision. Do not chew or bite!