Material: Rubber
Function: Comprehensive Fitness Exercise
Size: 3 * 1.5cm/1.18*0.6in
Model Number: Face Jaw Muscle Exerciser
Color: Black/White/Gray
Type 1: Jaw Line Trainer
Type 2: Jaw Line Exerciser
Type 3: Face Exercise Equipment
Type 4: Jaw Exerciser
Type 5: Workout Fitness Equipment to be used under the direction of a licensed physcian