What does a boxer have in his mouth?

The thing in the boxer's mouth is: tooth protection.

It is made of rubber. I just bought it and put it in my mouth with warm water, leaving teeth marks. It fits perfectly. According to the rules, boxers must use mouthguards during the competition, and the size of mouthguards should be suitable for boxers participating in the competition. If the boxer doesn't bring his own tooth protection equipment, the owner is obliged to provide it. Athletes are not allowed to intentionally spit out mouth protectors during the competition, otherwise they will be warned. If the mouth guard is knocked off, the boxing referee on the stage will pick it up and take the boxer to his corner. After the assistant washed, the boxing referee on the stage put it on the boxer. Boxers can't change the mouth guard at will, and the game can't be played without the mouth guard.

Boxing protective gear includes helmet, tooth protector and crotch protector. Athletes must use helmets when participating in amateur competitions. The specifications and styles of the helmets of both players should be uniform, one side is red and the other side is blue, which should be consistent with their respective roles. The boxing helmets used must be

It is a unified head protector approved by the National Boxing Association. You don't need to wear protective gear for professional competitions and WSB competitions. Athletes should wear crotch protectors. If the crotch guard falls off or is damaged, it should be replaced and put on in time. If the crotch protector cannot be replaced within one minute, the athlete can continue to play the whole round without wearing the crotch protector, and then replace the crotch protector at rest. If you can't wear the crotch guard in time at rest, the game can't continue.