Masseter Muscle Training Ball Jaw Training Exerciser

Product information:
Applicable scenarios: running, fitness equipment, health massage, fitness and body shaping
Specifications: 12 generation black, 12 generation Gray, 12 generation white, 12 Generation Blue, 12 Generation Red
Material: Silicone
Size: 3.2x1.6x1.5cm
White: 40 pounds
Gray: 50 pounds
Black: 60 pounds
Blue: 40 pounds
Red: 50 pounds