The 3M Skull Screws Corded Earplugs with a Noise Reduction Rating of 32 dB. These earplugs are great for various noisy environments including job sites. The innovative design eliminates the need for rolling, allowing for quick and clean insertion. The tapered design fits a wide range of ear sizes, helping provide a secure and comfortable fit. Made from soft foam, they are comfortable for extended wear. The durable corded design not only helps keep the earplugs together but also makes the ear plugs easy to store around the neck when not in use. Choose 3M for reliable hearing protection with these corded ear plugs.