Moldex Mellows are high-performance earplugs with a unique ergonomic shape that fits snugly inside the ear canal, effectively blocking out external noise. They are recommended for improving sleep quality by wearing them while sleeping, as well as for noise reduction from pets, construction, snoring, and improving concentration. 【Recommended Uses】 For sleep, snoring, improving sleep quality, factories, studying, pet noises, and noise reduction. 30 decibels of noise reduction. Returns are not accepted due to hygiene reasons. Instant purchase is welcome.