Chin Support Dimensions: 3 inches wide Very soft and comfortable The most comfortable snore belt you will ever wear The strap is 3" wide X 4 1/4" long for extra strength retention to keep you together all night. Strap measures 29" long and stretches to 30" circumference Adjustable strap wrap around to keep mouth closed and reduce snoring Equipped with comfortable ear holes to help sleepers rest better and more easily May also help prevent dry mouth and sore throat Helps increase REM sleep Prevention ~ snoring, sleep apnea, bruxism, temporomandibular joint pain One Size Fits Best---Easy to Fit Approx. 24" to 30" unique design: It offers you a comfortable, effective and easiest way to stop snoring or treat orthostatic sleep apnea. It can help you and your partner sleep better each night and wake up feeling refreshed, not tired. The package includes: 1 x Anti-Snoring Belt