1---Effective noise reduction: Sleep earplugs have a noise reduction rating of 30dB, effectively reducing the interference of ambient noise and enjoying your private space. However, this does not prevent you from communicating with the people around you.Note: Only hearing protection is provided, not 100% silence. 2---Safe and reusable: These silicone earplugs are reusable and washable. If you want to clean them, just rinse them with water and wipe them with a paper towel. Earplugs are recyclable and made of skin-friendly materials to reduce environmental pollution. 3---Ergonomic Design: There are 3 sizes of silicone ear plugs to meet your needs and replacements. The silicone earplugs can perfectly fit the shape of your ears and won't fall off easily. Even if you lie on your side or turn over and sleep, the earplugs are not easy to slip off, and it is painless to wear for a long time. 4---multi-purpose: Vladmerc Multi-purpose earplugs are perfect for flying, swimming, sleeping, studying, reading, working, fireworks displays, mowing, and other different occasions. Noise reduction provides you with safe and comfortable hearing protection, relaxation and sleep. 5---Compact and portable: Each pair of earplugs has a small and portable storage box, which can effectively protect them from dust damage, and is extremely convenient to store or carry out, which is very suitable for work or travel. Material: silicone Colour: green, black, red, black + white Product list: 1*Ear Plug+1*Large Ear Cap+1*Small Ear Cap=1 set