The BruxGuard is designed to be inserted into the user's mouth before going to sleep and can be used on either the top or lower jaw. It has been made from a specially designed material that softens during the fitting process but once cooled down remains very durable. The BruxGuard should offer 3-6 months of use before needing to be replaced. The BruxGuard also features a unique breathe hole which allows air to pass through the device during sleep. This stops the wearer having to breathe through their nose which can often cause a snoring noise. All orders include a retainer box, fitting instructions & a plastic fitting spatula.