Ruger® 10/22® Passive Muffs & Shooting Glasses Combo provide all the protection a shooter needs for a day on the range or in the field. The glasses have high impact polycarbonate lenses with a scratch-resistance coating and are rated to ANSI Z87.1+. The muff provides NRR protection of 23DB. Muff and glasses include the Ruger logo. Made by the Allen Company under license from Sturm, Ruger & Co. Inc.