Doing this regularly contracts masseter muscles and activates facial expression muscles, preventing skin from sagging and reducing the appearance of fine lines and deep wrinkles like nasolabial furrow and crow's feet. The Oveallgo PRO Double Chin Removal V-Face Suction Trainer tightens loose skin and eliminates double chin and facial fat. The repeated jaw and neckline exercise applies resistance to the muscle groups that support your face, chin, and neck, allowing you to trim, tone, and tighten and achieve a V-shaped face and an overall youthful appearance. This Oveallgo Double Chin Removal V-Face Suction Trainer remover has a solid ABS body wrapped with food-grade silicone material that is odorless and safe to use. The material is durable enough for frequent use, letting you achieve long-term, natural face lifting results. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.