【Excellent Flexibility and Breathability】 These earplugs use highly flexible liquid silicone material, so they won't hurt your ears even after wearing them for a long time. Also, the three-layer flange structure and hollow top design prevent the uncomfortable feeling of plugged ears. They are also breathable. 【Washable, Reusable & Easy to Put On/Take Off】 MZHOU earplugs are washable and reusable, making them economical and hygienic. Moreover, you don't need to roll and squeeze the earplugs to insert them. When inserting, hold the handle of the earplug and slowly insert it along the ear canal. (As long as your ear is comfortable). When removing, hold the long, thin handle and slowly remove them. 【Filters Noise and Protects Hearing】 These earplugs have a noise reduction rating of 23dB, making them suitable for a wide range of environments. They are ideal for use at home, in hotels, campsites, on airplanes, when sleeping, working, studying, or meditating. They are also useful for long-distance travel on trains or buses. Use them in noisy environments such as live concerts, parties, clubs, sporting events, fireworks displays, shooting ranges, and construction sites when you feel uncomfortable. 2 12 385