Product Features: 1. The brace can help reduce tooth wear and improve sleep quality. 2. Equipped with anti drop and swallowing preventing design, it is safer and more stable Product Parameters: 1. Material: EVA resin 2. Style: in opp bag or box-packed How to use: Firstly soak the brace in cold water with cleaner for about 5 minutes, then rinse the brace with water, finally wear them on the upper or lower teeth. Storage Method:The brace should be stored in dedicated box or lidded containers to maintain hygiene when it is not in use. Precautions: 1. Wash with cold water before use, and do not wash with hot water, otherwise it will become soft, deformed and can reduce the service life of brace. 2. You can drink some water to prevent dry mouth before wearing, and keep mouth close to prevent brace from falling out 3. It may require 3-7 days for you to adapt to the brace. It is normal that different degrees of dental ache, nausea and drooling, etc, occurs. Packing List: 1 x brace