267 HPR400D Metal Detectable Reusable TPR Corded Ear Plugs NRR 27 balaclava and water resistance Canvas lining makes Retail Eyewear and water resistance Canvas lining makes the glove very comfortable Wing thumb increases comfort in open handed work Elastic closure for added safety and comfort Here it is dirt repellent surface Pre formed plug shape with no rolling required makes insertion simple Self sealing flanges give all day comfort Rigid stem makes insertion easy and reduces the risk of contamination Corded versions use a non resonating vinyl cord for comfort and easy storage Cord can be detached for added safety when working around machines making them very cost efficient Moderate attenuation allows for safe usage that blocks out hazardous noise yet allows warning signals and voices to be clearly understood