Supadeals Double Sided Mouthguard / Mouthpiece, Teeth Protector For Boxing, Sports, Basketball, Gum Shield Mouth Guard Dual density structure, softer than other teeth protectors. Heating snap-in design, more fit users' tooth form and the mouth guard can reach to rear molars, to provide complete protection. Increases airflow to improve your strength, endurance, and reaction time These mouth guards can be used for MMA, boxing, jiu jitsu, wrestling, football, or any other contact sport! Non-toxic and odorless; 100% POE