Titus Triple Black 32 NRR - Quality Hearing Protection Earmuffs (Standard) Titus Triple Black - 32 NRR - Silence Any Environment Compacting design for effective storage. Pull struts make for a 1 Size Fits All Design Certified 32NRR CE EN 352-1 ANSI S3.19 Approved, Ready For Shooting and Other Loud Environment Soft Padded Ear Cushion for a Snug Comforable Fit - High Quality Durable Outer Construction Ready For Abuse Industrial Quality - Ready for Construction, Shooting, Hunting, Industrial Work, or even Heavy Machinery