Product Description: Professional noise blocking earplugs can make you sleep comfortably and soundly Soft texture, light as nothing Ingenious design, physical noise shielding, small and soft earplugs, comfortable to wear, no foreign body feeling, no ear swelling, selected sponge material, small density, less gaps and more noise reduction The human cochlea is designed to fit the auricle and prevent falling off Soft elastomer, wont hurt your ears when you sleep Can be washed and reused 2 noise reduction experiences, silicone earplugs and sponge earplugs switching Filter + soft elastomer + sponge earplugs, 3-layer noise reduction effect increased by 60% Proper slow rebound time. The earplug rebounds too fast, which affects the wearing comfort. It starts to rebound before it is put into the ear canal. Professional noise proof earplugs with a thickness of 0.4mm are soft and comfortable. They are designed with a combination of silica gel and sponge, which can attenuate the impact of sound waves on the eardrum, greatly improve the noise reduction effect,and better fit people with different ear canal sizes (random replacement of memory sponge earplugs and silica gel earplugs) It can be washed repeatedly, which is healthy and hygienic. The service life of earplugs is 1 to 2 years. Please wash them with clean water and dry them in a ventilated place. They can be used again Try out various scenes: sleep, study, travel, work, music, road, etc Product size:2.1x1.4CM/0.82x0.55inch Products include: 10 sponges + 2 silica gel