Howard Leight AirSoft Reusable Earplug Cord Options:Corded Nose cup is standard -

Nose cup is standard - Less dead air space and channels exhaled breath

You get more for your money in the new packaging

Seamless gray premium cotton/polyester liner

rotary vane

This means that they are tested to withstand a 1 foot drop of a 30lb object

Howard Leight AirSoft Reusable Earplug Cord Options:Corded Nose cup is standard -NRR 25Corded 50 pr bxUncorded 50 pr bx Optimized for exceptional in ear comfort, AirSofts new four flange design creates a better seal in the ear canal, delivering optimal protection and increased comfort for long term wear. Internal fins create an interlocking, noise blocking barrier within the air pocket, providing dependable attenuation for all wearers upon proper insertion. At the same time, AirSofts firm stem and tapered shape facilitate easy