• Ideal size for workers with smaller ear canals • Low pressure polyurethane foam expands gently for comfortable long-term wear • Contoured T-shape for easy handling and wear • Smooth, soil-resistant closed cell-foam skin prevents dirt build-up • Optional style with attached cotton cord and paper bag packaging suitable for pulp and paper and other process industries with zero tolerance for packaging waste requirements • Bulk refills for Leight® Source 400 and Leight® Source 500 Earplug Dispensers • Green• NRR30