Product description Material: Silicone Size: 1.3*1.2*2.8cm Color: black, white Quantity: 2pcs Package content: 2 Facial Muscle Exerciser 1.Perfectly Shaped Jawline Say goodbye to double chins and sagging facial muscles. By eliminating fat deposits around the chin and neck through jaw exercises, it promotes a tighter facial line and chin lift, creating a chiseled jawline. 2.Face tighteners chewing has been shown to reduce cravings and lead to more weight loss. Convenient, easy-to-carry hands-free exercise can be used while going out, at the gym, at work, and anywhere. 3.The effect is remarkable The exercise set can start with at least 30 to 40 repetitions and then four sets of 150 repetitions per day. You have to persevere, but it can produce results. We strongly recommend that you start with the low resistance and exercise gradually. 4.Easy to carry Same size as thumb can easily fit into any backpack or pocket, Work, study, play can be exercised. 5.Ergonomic design Our product is small enough to fit anywhere in the mouth without being placed in the front like other jaw line trainers.