3M Occupational Health Env Safety Earplug Express- Features a 25 Db. noise reduction rate3M Occupational Health Env Safety Earplug Express is made using polyutherane that provides protection to ears. It comes with a pack of reusable pillows to keep them clean.- Color Material: Multicolor Polyurethane.- Type: Earplugs.- Application/Usage: Facility Maintenance, Grinding, Electrical, Machine Operations, Sanding, Welding More.- Noise Reduction: 25 dB.- Noise reduction rating: 25 db.- Cord type: Corded.- Cord color: Assorted.- Plug material: Foam.- Eliminates the fear of hand-to-ear contamination.- Soft flexible grips for easy insertion and removal.- Slow recovery foam inserts easily, seats and stays in place.- Designed for excellent attenuation on the job.- Sold as 100/Box..