Moldex's Softies are very high-performance earplugs. The soft, elastic polyurethane and the angled design provide a comfortable fit. Also, with an NRR of 33dB (the industry's highest), they effectively block out external noise! They effectively cut out only annoying sounds. In addition to being used for sleep to improve sleep quality, they are also recommended for noise control from pets, construction noise, snoring, and improving concentration. 【Recommended Uses】 For sleep, snoring, improving sleep quality, factories, studying, pet noise, and noise control. Returns are not accepted due to hygiene reasons. Instant purchase is OK.