Professional boxing mouthguard Color: orange, white, red, blue Material: edible silicone Use: training home use Material: EVA Weight: 25g The front arc groove design makes breathing smoother and gives you a different feeling. The thickened design can withstand strong frontal and lateral impacts. Instructions for use 1. Trim to the appropriate size according to the mouth shape 2. Soak the braces in 70-80° hot water for 20 seconds to soften the braces 3. Put them in your mouth and bite them gently with your upper and lower teeth 4. Use your hands and tongue to press them tightly during this period. Take them out after 30 seconds and soak them in cold water to fix them 5. After each use of the braces, wash them with clean water, dry them, and put them in the box. Note: Everyone's teeth are different. In order to achieve a better and more suitable comfort, you need to use your hands and tongue to fix them. Don't bite them hard with your teeth after soaking in hot water. It is easy to bite them, and the fixing temperature is 70-80℃ water. It is strictly forbidden to use 100° boiling water