Ergonomic design: Our special patent oval earplugs are designed on ergonomics and optimal fit in the ear canal, they can mold to the ear cavity to maximize comfort and help provide a secure fit to block the noise reduction effectively for proper fit. With a special grooved upper for easy pinching, ideal for side sleepers, snorers, study, work, etc. LIGHTWEIGHT & ULTRA COMFORTABLE: The ergonomic tri-flange earplugs are designed to stay in place even if you sleep on your side, and are made from a soft, lightweight material that is comfortable to wear. In addition to comfort, let needed sounds in (like your alarm clock) while keeping distracting noises out. REUSABLE & WASHABLE: Comes with a sturdy plastic case to keep your sleep earplugs safe and clean wherever you are at home or travelling. Washable and reusable, clean them regularly with warm and soapy water so that you can use them for a long time. MULTIPLE OCCASIONS: Noise canceling earplugs, noise reduction level NRR 32dB, these multi-use earplugs guarantee to protect your hearing from loud noise, ideal for sleeping, snoring, swimming, studying, shooting, air travel, noisy events , concert, motorcycles, etc. 3*3*1.7cm