Material:Jawline Exerciser is made of food grade silicone - 40 lbs, only need 5-10min per day, you can have a perfect jawline
Upgraded Design: Jaw Exerciser through multiple trial iterations, the training process is more effective than the original arc design, and the chin is shaped better
Shaping: Jawline Sculptor is a bite to increase facial blood flow and oxygenation. Reshape the jaw muscles with exercise
Convenience: Provide (1.00x 0.65x 0.65 inches) box, easy to carry, so that you can exercise in any public place