QB3HYG REPLACEMENT PODS: Replacement pods for Howard Leight QB3HYG earplug model only SEMI-AURAL FIT: Soft pods rest outside of the ear canal for a semi-aural fit that offers a good balance of comfort and hearing safety NRR 23: Noise Reduction Rating of 23 ECONOMIC REPLACEMENT: Replacement pods allow you to economically replace the ear plugs while reusing the headband 50 PAIRS PER PACK: One pair per polybag