3M E A R Classic 310 1001 Ear Plugs, Cylinder, 29 dB NRR, Uncorded, Disposable, Yellow, 200 PK 797DY2 8 cfm End Vacuum 28 8 cfm End Vacuum 28 Shackle Type Standard Shackle Vertical Shackle Clearance 1 1 8 in Horizontal Shackle Clearance 3 4 in Shackle Diameter 3 8 in Shackle Material Boron Alloy Shackle Finish Chrome Plated Lock Body Color Silver Body Height 2 in Body Thickness 3 4 in Body Width 2 in Lock Body Material Steel Lock Body Finish Chrome Plated Number of Pins 5 Pin Number of Keys 2 Rekeyable Yes Features Aptc12 Cylinder Helps Prevent Picking Resistance Properties Corrosion Resistant Compatible Key Manufacturer Part Number AK5 Environment Indoor and Outdoor Country of Origin Taiwan Cord Options Uncorded Noise Reduction Rating 29 dB Earplug Color Yellow Reusability Disposable Cord Options Uncorded Earplug Shape Cylinder Earplug Material Foam Pairs Per Package 200 Series E A R Classic Metal Detectable No Standards 29 dB CSA Class AL Insertion Method Roll Down Noise Reduction Rating NRR 29 dB Earplug Packaging Bulk Box Earplug Pair Pack Type Cardboard Pillow Pack Country of Origin United States