Universal SizeThanks to its flexible design, Jaw Exerciser fits all jaw sizes. Whether you are a man or a woman, you can use this trainer to shape and tighten your Jawline. It is the perfect solution for those looking for a versatile and comfortable Jaw Trainer! High Quality MaterialMade of food-safe silicone, taste-neutral, non-toxic, safe and environmentally friendly. After cleaning before any use, you can put it in your mouth and use it for recycling. (It is recommended to wash it with warm water before use). Jawline Exerciser for Men and WomenActivate your facial muscles (Masseter muscles) while using our jaw trainer and increase blood flow of your face. The exercises tighten your face and define your chin area. This is a perfect jaw trainer for men and women for jaw training. Create a perfect jawPine trainer directly targets the jaw muscles and burns fat deposits in this area, making the face slimmer. Jaw trainer, can promote the strength of the face and lifting the chin, you can remove the double chin and form a perfect jaw, our models protect your teeth, gums and joints from damage. Wide applicationSize of the fitness ball for the chin is suitable for men and women. It is easy, small, practical and easy to carry. It can be used for going out, working and training. It is a perfect workout to improve the chin line. Our jaw trainer is designed for universal use and supports any face type, men or women.