High-quality material: It is made of safe and environmentally friendly EVA+PC material. The size is appropriate, the weight is light, and it will not feel the burden. It is easy to carry and can be reused. Provide better sleep: it is scientifically designed and has been effectively confirmed. It aims to improve noisy breathing, effectively prevent you from calling at night and giving you a quiet night. Easy to use: It is convenient to wear and can be reused multiple times. Cleaning is also very convenient. You can use it again with hot water. It will not hinder you to speak or drink water. Easy to carry: equipped with a compact storage box, small volume, will not take up a lot of space, which is very suitable for travel. You can enjoy comfortable sleep anytime, anywhere. Wide application: Using it can not only help you reduce noisy sound, but also prevent molaring, which can improve sleep well. Good sleep can improve immunity and maintain a healthy body.