Description HIGH QUALITY MATERIALMINE TRAINER, MADE OF SILICONE ON THE SHAPE, odorless, non-toxic, safe and environmentally friendly. After cleaning before each use, you can put it in your mouth and use it, it is very durable.Perfect EffectThe jaw trainer can tighten and tighten the facial muscles underneath to reverse the signs of aging. Train facial muscles to reduce sagging, fine lines and wrinkles and look younger and better. It only takes 20 minutes a day to achieve incredible results.OLIE EXERCISEROur lower jaw trainer is an ideal tool for lifting and tightening the lower jaw. Training becomes lipids around the chin, trains facial muscles, reduces flatness and bending and helps restore skin, strength and youth.Easy to Use This jaw trainer is very easy to clean, Put it in boiling water 15-20 seconds before use, then rinse it in your mouth and bite gently for a comfortable handle. Rinse with water after use and dry for next use.Easy to CarryYou get 6 pieces of baking trainers, 2 pieces in black, white and gray, the size of this soft jaw trainer is 3 x 1.6 x 1.5cm, small, easy to carry, suitable for use in gym, work and travel. Note: the data are all manual measurements, please allow an error of 1-3cm, due to the difference in light and display, there will be a certain color difference, depending on the physical object received.