Mouthguard for abrasive teeth, sports protection, rugby, TPR, food safe, sports, rugby, taekwondo, boxing, kickboxing, martial arts, free sports protection (#3) Safe and Healthy: Made of safe and healthy food grade TPR material, non-toxic and reliable, so you can use it with ...Mouthguard for abrasive teeth, sports protection, rugby, TPR, food safe, sports, rugby, taekwondo, boxing, kickboxing, martial arts, free sports protection (#3) Safe and Healthy: Made of safe and healthy food grade TPR material, non-toxic and reliable, so you can use it with confidence and ensure oral health, making every exercise more enjoyable. Comfortable: With the perfect design of the breathing channel, you can breathe more smoothly during exercise, adjust the size as you like, fit the upper and lower lips, perfect comfort, makes every exercise full of fun.