Exceptional Anti-Noise Earplugs: noise earplugs block loud noises With a Noise Reduction Rating (NRR) of 38 dB to protect hearing, eliminate distractions during sleep and promote concentration during studies. Ideal for studying, sleeping, flying, concerts, sporting events, fireworks, vacuuming, mowing, drilling and other noisy environments. Soft, Safe Material: Earplugs are made of super soft safety PU foam (no latex or PVC) that does not harden easily, lightweight, dense and conical in shape for incomparable comfort and hygiene.Earplugs for sleeping use special high-density memory foam, good sound insulation, slow rebound time, soft and comfortable, they provide all-day comfort and protection in a wide variety of noisy environments. Superior Comfort: Thanks to their unique, flared design, the balls adapt perfectly to your ear canal, without putting pressure on your ears, especially for people who sleep on their side, Can be used when you sleep with a snoring partner,Let you have good quality sleep.is equipped with high-density micro-holes, so that the ear will not be blocked or heated, and it provides enough comfort. Package Contents: Contains 120 earplugs (60 pairs) in addition to a high-quality aluminum container, so it can be easily transported and stored.which is suitable for most ear canals.They perfectly meet your needs.They are reusable and provide long-term protection.(It is recommended to replace 4-6 day old earplugs with new ones to keep the ear canal clean).