Ear-Friendly Silicone Material: Made of soft silicone material, the moldable earplugs are lightweight and comfortable to wear all day long, and they are also reusable, so you just need to clean them regularly and let them dry naturally for future use. . Comfortable fit: Noise-cancelling earplugs are designed to adjust the ear canal without pressure, suitable for adults and children. These earbuds are tight enough to cover your ear canal and won't fall out even if you sleep on your side. Dual function: The waterproof earplugs have good noise reduction effect, suppressing the noise from construction sites, concerts or traffic, giving you a better sleeping or studying environment; The earplugs have good waterproof performance and can also protect your ears when swimming . Sleep better: Soft silicone earplugs help you sleep, creating a comfortable, custom-fit barrier that blocks out noise. This can help you achieve deeper REM sleep (rapid eye movement sleep). Great for light sleepers – comfortable to wear all night (or during the day if you work the night shift) and wake up calmer. GREAT CHOICE: It's perfect for swimming, studying, sleeping and general hearing protection in noisy environments. Ear-friendly silicone material: made of soft silicone material, the moldable earplugs are lightweight and comfortable to wear even for a whole day, which are also reusable that you just need to clean them regularly and leave them dry naturally for future use^ Comfortable fit: the noise cancelling ear plugs are designed to fit ear canal without making any pressure, suitable for both adults and kids, these ear plugs cover the ear canal tight enough that will not fall out even when side sleeping^ Dual functions: the waterproof ear plugs have good noise reduction performance, muffing noise from construction site, concert, or traffic so that you can have a better environment for sleeping or studying; With good water resistance, the earplugs can also protect your ears while swimming (but note that silicone earplugs aren't recommended for outdoor swimming on a hot day)