[Repair sagging skin] If you lose weight or your skin is sagging after childbirth, please choose our jaw exerciser chewing jaw device. Our jaw exerciser can train facial muscles, reshape your face, make your skin firmer and firmer, and enhance blood flow to your face and neck muscles. [Benefits] Reduce food cravings by satisfying the desire to chew and eat. This chin muscle exerciser can help tighten the face by strengthening the jaw and face, making the line of the jaw thin and slim, and make you look younger. [Unconstrained] The jaw exercise ball can effectively exercise the jaw and cheek muscles with only 10-15 minutes a day. On the way to work, watching TV, washing dishes, you can use the jaw exerciser. [High-quality materials] The jaw exercisers for men and women are made of free food-grade silicone. Our double chin reducer is made of the same material as the baby pacifier. The type of silicone does not contain any chemical fillers or by-products. You can use the chin exerciser directly. [How to use] You only need to place your teeth on the small curved part and bite it down. If you want the chin exerciser to soften, you can boil it in water for about 15 seconds to make it soft enough to bite into the fragments of the chin exerciser. The total length of the product: 21cm (including 14.5cm connecting strip) Chew block size: 3.2 * 1.9 * 1.5cm Product net weight: 24g Package included 1*Exercise Ball Texture of Material: Our jaw exerciser is made of food grade silicone. Our double chin reducer consists of the same material as a baby pacifier, without any chemical fillers or byproducts. Safe to chew on it. Generates a shaped jawline: Decrease cravings, leading to more weight loss, remove double chins and loose facial muscles. This jaw exerciser firms your face, chisels the jawline shape by strengthening your jaw and face then makes you look younger. Slim, Tone, Tighten, and Define your Face: This Jaw Exerciser is for anyone interested in health and fitness, who wants to create a more muscular, youthful appearance. Its the hands-free workout that anyone can do. It is already helping people of all ages to tone, firm, and strengthen their appearance, by increasing blood flow to the face, neck and head. Hands Free Workout: Use it at the gym, office or on the go. We know to work out our body for a toned physique, so it only makes sense to work out the muscles in your face and neck too. If you're looking to slim and tighten your face, try a few burnout sessions where you bite down, hold, and slowly release your bite.