【Anti-Snoring Chin Strap for Mouth Breathing】: This anti-snoring chin strap is made of high-quality, soft, elastic, durable, breathable, and odorless upgraded materials. It's easy to wear and ensures comfortable sleep. (Note: This chin strap is suitable for snoring caused by backward movement of the lower jaw, mouth breathing, and sleep posture problems.) 【High Stability and Adjustability】: Our product uses a special four-sided structure to support users so that it won't fall off even when worn all night, and it won't be uncomfortable even when sleeping on your side. 【Breathable & Washable】: The head-band type chin strap for snoring prevention has excellent breathability, quickly dissipating heat, so you won't feel stuffy during sleep. It prevents dryness of the mouth and throat. It can be used repeatedly and washed regularly to keep it clean. It promises a comfortable, snore-free, and restful sleep until morning. 【How to Use】: Step 1: Hold the longest loop part of the strap (with the loop side up) with your left hand and the small hook part of the strap (with the hook side down) with your right hand. Step 2: Adjust the loop strap so that the Velcro is securely fastened on the top of your head. Step 3: Connect the loop and hook on the back of your head, and adjust the loop to secure the back of your head. Try opening and closing your mouth, and if it's not fully secured, readjust the loop on the top strap. 【Package Contents & Quality Guarantee】: This advanced anti-snoring chin strap can alleviate and stop snoring, making it the best gift for husbands, wives, parents, children, and friends.