Features1Lip Muscle Training: Cover the braces with the upper and lower lips, and repeat the upper and lower lip closing movements, and adjust the resistance of the trainer to exercise and improve the strength of the lip muscles. 2Improve Oral Muscle Strength: It can exercise to improve the strength of the oral muscle, and has a good improvement and exercise effect on poor closure and mouth breathing caused by poor oral muscle strength. 3Face Slimming: Training will involve the cooperation of the entire facial muscle group, so it has a certain effect on face slimming, improving facial skin relaxation, nasolabial folds, etc. 4Good Correction: After long term use, it can activate the muscles of facial expression. Improve protruding lips and sleep with mouth open, prevent facial deformities. 5ABS Material: A set of accessories are available, easy to install and use. Adopts high quality ABS material, safe and eco friendly, firm and sturdy, durable.SpecificationItem Type: Oral Lip Muscle Training ToolMaterial: ABSUse: Lip muscle training toolPackage List1 x Wrench 2 x Spring 2 x Support 1 x Main Body 2 x Braces