Allen Company Ruger Pro Class Shooting Muff & Glasses Combo, Black Muffs: NRR 23 dB, meets/exceeds ANSI S3.19 and CE EN352 specifications Muffs fold for easy storage/transport Glasses: ANSI Z87+ High Velocity Impact Resistant, anti-scratch lenses Wrap-around frame for wide field of view, non-slip rubber nose piece Clear lenses are perfect for indoor conditions