【High-Performance Filter】 Reduces sound by approximately 40dB. By wearing these when you're bothered by surrounding noises, such as during sleep, work, study, or in public transportation, you can block out unpleasant sounds. 【Achieves Sound Sleep and High Soundproofing】 The earplugs come with three sizes: S, M, and L, allowing you to change to the size that best fits you. This provides an excellent fit and complete integration with your ear, creating a quiet sleeping environment. 【Washable & Reusable】 The elasticity won't diminish 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. ＊Instant purchase welcome・Midnight silent purchase OK◎ ＊First come, first served for single items ＊Welcome bulk purchases, feel free to comment ＊Free shipping! ・Please understand that items are stored at home and shipped in simple packaging before purchasing (⁎ᵕᴗᵕ⁎) ・Please check the actual photos for the condition of the product♪ ※To sell at a slightly lower price, we may ship the item without the box due to shipping costs. Earplugs for sleep, complete soundproofing, sound sleep, noise canceling, high performance, sound insulation value 40dB, sound sleep, noise reduction, relaxation, airplane, study, washable #Kanana's product list is here ✨️☜ ☆56-22☆