Description: It is a facial exercise product that can help strengthen and tone facial muscles. Get a clearer face and give your youthful appearance a new look. It only takes 10 minutes a day to see the difference. After enough training, rest and nutrients, your facial muscles will grow like other muscles! Brand new high quality Strengthen and shape your jaw line Shrinking your double chins makes you more confident. Unique design helps to lose weight and firm face. Train to bring out a bright smile Specifications: Colors: Dark blue, red, green, orange, blue Material: Silicone Size: 4.1*3.4*2.6cm Suitable for: sports fitness, masseter training, facial training Package contains:1/3pcs 1pc=1 x masseter muscle ball 3pcs=1*ball+1*box+1*lanyard