Sleek Tri-Flange earplugs utilize three tapered flanges to form a secure seal in various sizes of ear canals. Soft, pliable translucent flanges conform for solid comfort. The LiveWire stem employed by the No-Touch Earplugs makes insertion extremely easy. Economical reuse when regularly cleaned with soap and water for months of continued protection. Soft cotton LiveWire cord for extreme comfort and look. Corded earplug. NRR 26dB. Tested to ANSI S3.19-1974 standard. 100 pair per box. 4 boxes per case. Sold by the box.