--Color: Red --Size: 3 Layers (Suitable for big ear canal) How to clean earplugs and maintenance? It can be cleaned with water and placed in a ventilated place to dry. It can be used again. It is made of silica gel, so it can be washed repeatedly and used many times.If it is well maintained, it can be used for 1-2 years Why use it? We have two sizes to choose from, the 2nd layer is suitable for the small ear canal, and the 3rd layer is suitable for the large ear canal. The sleep silicone ear plugs can make the noise of life gradually go away, enjoy the long-lost comfortable sleep, and wake up naturally,comfortable ear plugs for sleeping for the best solution to snoring. Warm reminder: 1.The earplugs do not completely isolate the sound. He can resist 60 of the sound. As long as the alarm is turned on to the loudest or vibrating mode, you can hear the work alarm. 2.The novice will feel a little discomfort when wearing it at first, but after wearing it a few more times, it will gradually adapt.Multiple Uses:ear plugs for sleeping,noise cancelling ,snoring,concert ,work,shooting,construction workers,side sleepers,construction. Practical And Convenien:The earplugs are equipped with a separate box, which is convenient and hygienic for traveling and working. Noise Reduction Ability:3 layers silicone soundproof earplugs, the noise reduction effect can be increased by 60 ,these multi-use earplugs ensure to protect your hearing from loud noise,Makes the surrounding area unusually calmer, You can clearly hear your own breathing and indulge in your own world. Design: Ergonomically designed earplugs that fit the shape of the concha cavity of the human ear. They are use of a thinner skin can better adapt to the ear canals of different people, making the ears comfortable to weartightly worn and can't be thrown off, and they are not painful to wear all day long. They also bring additional passive noise cancelling effects through physical sound insulation. Material:This silicone earplug uses nano silicone material, which is environmentally friendly, non-toxic, soft and comfortable, safefy and reusable Washable.