Howard Leight™ Maximum Lite Earplugs, Bulk - CanisterUncorded, 30, Size: Small, CSA Class AL, Bulk Canister Prefilled canister fits on the HL400 earplug dispenser 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 Style: Uncorded NRR dB: 30 Size: Small Certification(s): CSA Class AL Packaging: Bulk Canister Manufacturer