MAX. BRUXISM SUPPORT // Prevents teeth grinding at night 7. Mouth guard should feel custom snug into your mouth! PRECISION // Automold to your bite, just boil in water and then bite down on the moutpiece to form a comfortable mouthpiece customized to your bite a. Heat water and place hot water in a container large enough to be able to submerge mouth piece;1b. Have another container with reg. temp tap water. CLEAR MEASUREMENT // Reading to easily calibrate the mouthpiece to your desired setting 5. If mold feels snug, secure, and tight, then take out of mouth and place in other container of water.6. Take out of other container and place in your mouth to test. UNIQUE LOCK TECH // Precision lock technology, locks the mouthpiece in place at your desired setting, this can be changed at any time 2. Make sure soft plastic is secure into hard plastic (check all nipples are secure). Only submerge for 60 - 90 seconds. 3. Shake off any excess hot water, and place in your mouth; NEW DESIGN // Makes the mouth guard the most effective mouthpiece on the market 4a. Bite down hard and suck out all the air. Also, press firmly on your lips so that the soft gel portion molds even better.4b. When biting down, remember not to bite too hard where your teeth bite through the soft gel and are now touching the hard plastic.