Welcome to the ZYPPAH family! Our mouthpieces were made with you in mind—we take everybody's sleep seriously, and ZYPPAH was born from a desire to help every night be the best night's sleep of your life. Your personal health is directly tied to your sleep quality. Snoring can impact both how much oxygen your brain is getting and how well you're sleeping at night. The ZYPPAH Anti Snoring Appliance aids through its innovative hybrid design; while helping to advance the lower jaw, it also acts as a seatbelt for the tongue using our patented elastic tongue strap. The device is lightweight, only 1.76 ounces, and one size fits most—men and women both. The product case measures at 2.5 x 3 x 1.25 inches. Deciding to take back your night is the first step in your journey; a ZYPPAH product means that you're dedicating time to better sleep. It gets easier the longer you break in your device, giving your jaw and brain time to acclimate to it. Before long, you and your bed partner will wake up feeling more refreshed and ready to take on the day. More than just another snoring aid, it is the only product on the market that has been tested clinically in a medical trial and proven to work. Wake up feeling better and more energetic after getting a solid night's sleep. Full instructions can be found on our ZYPPAH Amazon store. This product is a refill for the ZYPPAH appliance in the Military variety, sold in a 2-pack for your convenience!