Teens/children's sports mouth guard Made of EVA harmless and odorless material Wear Kids Youth Mouth Guard to protect your child's safety and make them love sports! Instructions 1.Put the mouth Kids Youth Mouth Guard into boiling water at 90℃ for about 50 seconds until the Kids Youth Mouth Guard becomes soft. 2.Remove the Kids Youth Mouth Guard, cool it for 5 seconds and put it in your mouth to fix it, press the center and edge of the Kids Youth Mouth Guard with your fingers, the process takes about 20 seconds until the Kids Youth Mouth Guard is formed. 3.If the Kids Youth Mouth Guard fits your mouth, tilt the Kids Youth Mouth Guard into cold water for 10 seconds. Allow the Kids Youth Mouth Guard to cool and contract so that it fits your teeth perfectly. 4.Please disinfect before and after using Kids Youth Mouth Guard. If Kids Youth Mouth Guard does not fit your mouth, you can carefully use scissors to cut off the excess part of Kids Youth Mouth Guard so that it fits you perfectly.