???? This jaw exerciser is made of high- quality material and free food grade silicone to ensure safety. ???? Say goodbye to loose facial muscles. Look Younger with prefect Jawline. This Jaw Exerciser will strengthen your face. Look younger by using our Jaw excerciser see effects in as less as 15 days. ???? Lightweight and portable for easy travel ???? It is also a great way to improve your face shape and reduce your double chin.