Package includes: 1xjaw trainer Features1. High quality material Food grade silicone material, non-toxic and tasteless, environmentally friendly and safe, flexible and elastic, can be chewed with confidence, not easy to decomptiable withm2. Facial Retouching Jaw Trainer strengthens and stretches the muscles of the face and neck, strengthens the jaw and reshapes the perfect natural shape of the face. Aids in weight loss Regular chewing of the jaw trainer can reduce food cravings, help with weight loss and improve jaw line.3. Multiple Choices Our jaw trainer comes in three colors to suit your different needs.4. Field of jawline application Our jaw trainer is light and delicate, easy to carry, can be used on the go, in the gym, at work, anywhere, etc.Color: gray, black(optional) Note: 1. Please allow a little error due to manual measurement. Please make sure you don't mind before bidding 2. The color may vary depending on the display. Please understand Note: Hello, please pay attention to your shipping address when purchasing products. If your receiving information (such as name, street, house number, doorbell or email without name) is incorrect, the order will not be delivered correctly.)