Made of soft medical grade silicone The snooze expanders are latex-free Unlike nasal strips, Snooze is washable and reusable Free replacement policy. What is Snooze?Snooze is a unique medical device used to enhance breathing, improve sleep, and reduce snoring - naturally. Snooze also provides relief from symptoms associated with allergies and colds. It was designed by a team of Swedish ear, nose and throat specialists, and has been used by sleep clinics, hospitals, and athletes since 1998. How does Snooze Work?Utilizing two silicone baskets that are inserted into each nostril, Snooze gently expands the nostril openings, allowing for more oxygen to enter through the nose. Who can use Snooze?Snooze was designed in sizes Medium and Large - and will fit most adult noses comfortably. The adjustable connection-cord was designed for a perfect fir regardless of distance between nostrils. Anyone can safely use Snooze, unless advised otherwise by a licensed physician. If continued discomfort occurs, refrain from using Snooze.