A. 3 Resistance Levels Jaw Exerciser Set The food - grade silicone sheet has 3 resistance levels (40 lbs, 50 lbs, 60 lbs resistance), which is suitable for many users. It is a jaw exerciser for men and women to do jaw exercises. It can activate facial muscles, increase facial blood flow and oxygenation during exercise. Doing about 5 - 10 minutes of chewing exercises a day may help get a clearer jawline. B. Proper Exercise of Jaw Muscles Our jawline exerciser is designed to exercise the masseter muscles, burn fat deposits in the area, and contribute to face slimming. Different from some other jaw training products, it is relatively safe for your teeth, gums, and joints. C. Jawline Exerciser for a Firm and Slim Face Using our jaw trainer can activate your facial muscles to make your face firmer and slimmer. The deepened texture and curved edge design make it more suitable for chewing and offer a better experience. It is a suitable jaw exerciser for both men and women. D. Exercise Jaw Anytime, Anywhere You can exercise your jaw anytime and anywhere with our lightweight, compact and relatively concealed jaw shaper. It is small enough (1.18x 0.79x 0.65 inches) to fit in your pocket and comes with a plastic container box. You can use it in public settings to keep your face - shaping tool with you.