1. Hearing protection noise protection: noise reduction rate of NRR 25dB to 33dB. With our earplugs, you reduce the risk of hearing damage caused by loud noises. The earplug set is ideal for sleeping, construction, concerts, hunting, shooting, work, testing, learning, snoring, and general hearing protection, as well as all kinds of noisy activities and events. 2. Unique design with triple flanges: Spiral shape fits in the ear canal, effectively blocking harmful noise. The earplugs are comfortable to wear and easy to insert into the ear canal. 3. Comfortable to wear: The ear protection earplugs are made of hypoallergenic, quality silicone, which is soft, comfortable, and lightweight. No itching or pressure pain. Silicone earplugs are suitable for longterm wear. 4. Easy to wash and reusable: The waterproof earplugs are washable, environmentally friendly, and clean. After use, they can be washed several times with warm water, then wiped with a clean cloth and airdried overnight.