--????Professional Service-- If you have any questions about the use of the product or the quality of the product during the use of the product, please contact us immediately, and we will have professional customer service to solve the problem for you. ??Package Includes: ?? 4 Mouthguards + 1 Carry Box for Mouthguard ?? Product Function: prevent teeth grinding, relieve jaw pain, temporomandibular joint, protect teeth at night, prevent movement. ??Description: This product is made of ductile material suitable for food, namely thermoplastic. You can create shapes that perfectly fit your teeth with a simple dental impression. It does not contain BPA, does not contain any harmful chemicals, no matter how long it is in the mouth, it will not affect the human body, please use it with confidence. ??How to Use: 1. Fully immerse the impression tray in hot water (70°C-80°C) until soft (about 15 seconds). 2. Immediately remove from hot water and place in mouth. Use your fingers and tongue to adjust it until it is close to your teeth. 3. Take out and wash with cold water. 4. Use scissors to trim excess material along the edges. ??Note: 1. It is normal to feel uncomfortable when wearing it for the first time, but you will get used to it gradually. 2. Press the side of the mouthguard properly with your fingers to make it fit better. 3. Do not immerse the mouthguard in water above 80 degrees for more than 20 seconds, otherwise the protective film will melt. 4. You can soak it with mouthwash. 5. Recommended use period: 6 months.???Awesome Shopping Experience?Our greatest wish is that you can get the best results from using this product! If you encounter any problems during use, please feel free to contact us, we will provide you with the best solution to ensure you have a good shopping experience. ???Multifunctional?Dental splints are not only great for anti-brushing, but can also be used as a teeth whitening tray to meet your whitening needs, and can also be used as a sports mouthguard to prevent teeth whitening. Exercise-related dental effects. ???Customized Mouthguard Fit Your Teeth?The upper arch of this night guard for teeth grinding is made of soft thermoplastic material and formable silicone, which can be easily shaped to fit any tooth shape and mouth size. You can cut the tray to your teeth, cut and adjust for best comfort and support. ???Safety Material?Our teeth grinding guards are made of high-quality and transparent medical silicone, which has passed safety certifications such as FDA, and has no side effects and no allergies. The flexible material ensures the best fit and comfort, and the safe material keeps you from worrying about your teeth. ???4 X Mouth Guard for Teeth Grinding?The mouthguards are ergonomically designed, Mouldable and customized fit personal mouthguards to relieve nighttime teeth grinding, make a good sleep for you and your mate. The size of the mouth guard is 6cm * 4.5cm * 1.5cm.