???SET INCLUDES?Our night teeth grinding mouthguard has 4 mouthguards in total, a storage box; when you don't use the mouthguard to sleep When used, it can be stored in a storage box for convenient storage and safekeeping. ???EASY TO USE AND CLEAN?This product is very convenient to use and can be easily molded in hot water to shape and customize the shield to your bite. It can be reused with a simple cleaning to ensure your teeth are in good clean condition. It is good to use while sleeping at night or during exercise during the day. Not recommended for protective purposes when teeth are subjected to strong impacts. ???INSTANT BRUSHING RELIEF?Our sleep and teeth grinding mouthguard reduces discomfort and prevents the harmful effects of teeth grinding and clenching. Dental mouthguards absorb the impact of your teeth snapping together during sleep, giving you maximum protection and helping you keep your teeth aligned. ???SAFE AND COMFORTABLE?The mouthguard is made of high-quality EVA material, which is very soft and BPA-free, so you can put the mouthguard in your mouth with confidence. Our night mouthguards are molded to provide a custom fit for a comfortable night's sleep. ???MULTIFUNCTIONAL?This teether guard can protect teeth, gums and temporomandibular joints, help users stop teeth grinding, prevent grinding-related noise, reduce damage to teeth, reduce snoring, and improve sleep quality. It also has the effect of whitening teeth.