Description: 【Physical Lifting】: Chin strap for sleeping applies gentle and continuous physical pressure to the lower face and jawline through adjustable straps, aiming to enhance the jawline contour. Ideal for those looking to refine their facial shape during sleeping. 【Convenient Use】: V Shaped Face Mask is easy to wear, it can be used while relaxing at home, sleeping, or during daily activities, easily fitting into your lifestyle. You can maintain your beauty effortlessly. 【Breathable Material】: V Line Lift Mask is made of highly elastic and breathable spandex fabrics, it ensures comfortable long term wear and prevents stuffiness. Perfect for extended use without discomfort. 【Adjustable Size】: Jawline Shaped Belt can be adjusted to fit different face shapes. Suitable for a wide variety of users. 【Professional Design】: Facial Lifting Belt is specifically designed for the neck, it is an essential tool for creating an elegant "swan neck". A must have for those who pursue a graceful neckline. Size Chart:27cm-31cm/10.63inch-12.20inch Package Includes: 1 Chin strap for sleeping Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.