Features 1、Prevent snoring, sleep apnea and dry mouth. 2、Made with strict quality control and medical grade materials. 3、It cleans up air pollution and allows you to breathe fresh and healthy air. 4、Effectively relieve snoring and improve sleep quality. 5、Make you breathe smoother and easier, and you can enjoy a healthy and comfortable sleep. Specification Features: Prevent snoring, sleep apnea and dry mouth. Made with strict quality control and medical grade materials. 4 different sizes for different people. It cleans up air pollution and allows you to breathe fresh and healthy air. Effectively relieve snoring and improve sleep quality. Make you breathe smoother and easier, and you can enjoy a healthy and comfortable sleep. Specification: Condition: 100% Brand New Material: Silicone Color: As the Picture Shows Size: 4 sizes Package list: 4 x Anti Snoring Device(with box) Note: Thoroughly clean the Anti Snoring Device and wash it with warm water after use.