Bizzico [Sleep Expert Supervised] Earplugs for Sleep, Soundproof, Sleep Well, Noise Canceling, High Performance, Noise Reduction, Relaxation, Hearing Protection, 35dB Reduction, Sleep Well, Work, Airplane, Study, Reusable, Washable, Convenient to Carry, Unisex, with Storage Pouch (S, M, L sizes x 1 set each) Ergonomic Design, Fits the Ear】The curvature conforms to the shape of the ear canal, so there is no pressure even when sleeping on your side, and it won't fall out during sleep. No worries about losing them. Distinguish the left and right ears (L/R) of the sleep earplugs, gently pull up the ear, and simply insert the earplugs into the ear canal for easy wearing. You can choose the most suitable tip from the optimal comfort sizes (S/M/L). High-Performance Noise Filtering】These earplugs are made of high-quality foam urethane, have a noise reduction effect of NRR35dB, and can block out most noise due to their high sound insulation, helping to improve sleep and relieve stress, and providing comfortable hearing protection for a long time. Washable & Unisex Earplugs】Made of environmentally friendly silicone material, and designed to be dust-resistant. Comfortable to wear, and your ears won't hurt even after wearing them for a long time. In addition, the earplugs are waterproof and can be reused by washing them after use. With Storage Case & Wide Range of Uses】These earplugs are compact and come with a storage box, so you can easily carry them wherever you go, such as when traveling or on business trips. They can be used freely in various situations, not only for sleep, but also for swimming, travel, study, reading, and work.