Earplugs PIP Nano Bullet™ Compact Disposable Soft Polyurethane Foam Corded Ear Plugs (100 Per Box) NRR 28, NP267HPF310C 7100099034 CSA OMega Electric Shock CSA OMega Electric Shock Resistant 18kV It has a highly visible 36 inch (91 uniform fit Black PVC cord for convenience and to prevent loss of ear plugs NRR 28 protection Applications Construction Applications Manufacturing Workshops Energy Nano Bullet™ Compact Disposable Soft Polyurethane Foam Corded Ear Plugs NRR 28 Perfect size for users with narrow auditory canals PowerSoft™ foam with optimal expansion recovery time perfectly adapts to smaller ear canals Soft and comfortable feel for all day comfort Easy to roll down to achieve a consistent