PLEASE NOTE: The product comes with a Christmas card so you can give the product as a gift to your friends or family at Christmas. Tongue RetainerImprove the quality of sleep, so that you are refreshed the next day, healthy deep sleep. Silicone MaterialSoft and flexible food-grade silicone material, comfortably fits your mouth, allowing you to enjoy quality sleep. Quiet NightLet you wake up feeling refreshed, let you and your partner say goodbye to sleepless nights, enjoy a quieter night. Easy to CarryThe small size and light weight of this case means you can take this handy device with you wherever you go, perfect for traveling. Widely ApplicableThis product is suitable for both men and women, improve your sleep quality and let you have a good night's sleep.