Earplugs for Sleep, Complete Soundproofing, for Peaceful Sleep, Noise Canceling High Performance, Noise Reduction Rating 40dB, for Comfortable Sleep, Noise Reduction Relaxation, Airplane, Study, Washable ▪︎Black x Mint Green▪︎ 【Package Contents】Earplugs x 1 set, Ear tips (S/M/L) 3 sizes each 1 set, Storage case x 1. 【High-Performance Filter】Reduces noise by approximately 40dB. By wearing them when you are concerned about surrounding sounds during sleep, work, study, or in public places, they will block out unpleasant sounds in your ears. 【Achieves Comfortable Sleep and High Soundproofing】The earplugs come with three sizes, S, M, and L, allowing you to change to the size that best suits you. This provides an excellent fit and complete integration with the ear, creating a quiet sleeping environment. 【Washable & Reusable】They will not lose their elasticity even after long-term use, and you can wash them with water to reuse them, making them hygienic and economical. After use, wash with water, dry, and store in the dedicated case. 【How to Wear】Before putting in the earplugs, first clean your ears. First, reach the opposite hand behind your head, pull your ear up, and gently push the grip into your ear canal to complete the wearing. *If you leave moisture in your ear for a long time while wearing earplugs, it can cause otitis media, so be sure to wipe it off before putting in the earplugs. 35-42