Suddora Mouth Guards - Protective Sports Safety Gear w/Vented Case Custom Fit: Easily molds to fit any tooth shape (not for night time teeth grinding, only athletics) Grip Rings: Added grip rings on bottom insure a better snug fit to insure tooth safety Vented Closure Case: Allows mouthguard to air dry between uses to prevent bacteria Adult or Child Size: Can be easily cut on edges to fit a childs mouth Safety Grade: Our mouthguards use special POE material and have passed all safety grades