Howard Leight by Honeywell Max-Lite® Corded Earplugs with cotton cord are made from low pressure polyurethane foam and are perfect for those having smaller ear canals. The contoured T shape facilitates easy handling and the soil resistant closed cell foam skin avoids dirt build-up. It can be used in automotive industry, aviation, forestry, furniture manufacturing, landscaping, metal fabrication and more and the noise reduction is rated at 30 dB.