Product material: diving material Product size: expanded size about 66*7.5cm How to use: Hold your jaw firmly in place and keep your mouth closed to help you stop snoring instantly in a natural, healthy and easy way. CONVENIENT AND COMFORTABLE: The anti-snoring device features a soft fabric that won't brush your face uncomfortably. The anti-snoring chin strap is fully adjustable in size, allowing you to perfectly adjust the strap to your needs, so you can easily find the strap that fits your facial structure. Putting on the harness assist is a breeze. Simply place the snoring solution under your chin, then place the straps comfortably around your head and ears. UnisexOur snoring solution anti-snoring chin strap is very comfortable and won't scratch your skin or hair, suitable for different head shapes to wear.