Brand new and high qualityExcellent for Boxing， KickBoxing， MMA， Wrestling ， Muay Thai，Sanda， taekwondoLight， Durable， ToughCan be Molded Easily for Comfortable FitCenter Hole Allows Unobstructed Air Flow Setting and use:1 according to their own teeth put braces trimmed to the appropriate size.2 put braces placed in 90 degrees of hot water for about 20 seconds， the braces maceration.3 into the user's mouth， with the upper and lower teeth gently bite teeth.4 period by hand and tongue aided by close， maintain half minutes， fully formed with cold water showers.5 each time you are finished using braces， wash with water to dry， into the box.Special instructions: the braces is export orders， materials are imported silica gel， first person will feel the taste， you can rest assured that the use， quality certification， non-toxic no side effects Package Content:1 x pc Mouthguards