267 HPR400D Metal Detectable Reusable TPR Corded Ear Plugs NRR 27 Retail Hearing Cutting and grinding modes Food Processing Cutting and grinding modes Magnification reader glasses are for the worker who needs to see up close The 28 mm wide reading magnifier provides the worker with enough lens area to view his work throughout the day Due to its lightweight 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 or when the TPR plug is to be cleaned using soap and water Can be reused several times