?Double Chin Lift?Promotes facial firmness and lifts facial muscle with the Men's Jaw Trainer, shaping the perfect contour of the chin. ?Safe Material?Made of food grade silica gel, safe and reusable after cleaning. Brand new and never sold twice. ?Instructions for Use?Exercise 2-3 times a day for 10-15 minutes each time to avoid damage to the jaw muscles and teeth. The effect will be most noticeable after 1-3 months of regular training. ?Portable and lightweight:The neck chewing tool is small and convenient to carry. Exercise anywhere without attracting too much attention. ?Package Included?You will receive 6 jaw exercisers (2 black 2 white 2 gray). Remember that results may vary from person to person and do not force the use of the male jaw exerciser. Biting your teeth can wear it down, so it is recommended to buy it regularly if it works.?Package Included?You will receive 6 jaw exercisers (2 black 2 white 2 gray). Remember that results may vary from person to person and do not force the use of the male jaw exerciser. Biting your teeth can wear it down, so it is recommended to buy it regularly if it works. ?Portable and lightweight:The neck chewing tool is small and convenient to carry. Exercise anywhere without attracting too much attention. ?Instructions for Use?Exercise 2-3 times a day for 10-15 minutes each time to avoid damage to the jaw muscles and teeth. The effect will be most noticeable after 1-3 months of regular training. ?Safe Material?Made of food grade silica gel, safe and reusable after cleaning. Brand new and never sold twice. ?Double Chin Lift?Promotes facial firmness and lifts facial muscle with the Men's Jaw Trainer, shaping the perfect contour of the chin.