Annic Eco-friendly and BPA Free Rubber Anti Snoring Chin Strap (Black + Blue) The material is very nice and durable that will last a long time Its comfortable to wear and adjustable. So it fits most size heads By sealing the mouth it allows you to breath thought your nose eliminating snoring. Easy to put on and doesn't retain any weird smells. Wash it before using it at the first time Your mouth wont dry any more and you will have a good, comfortable sleeping