JETZ™ Reusable Earplug, TPE, Bright Green, Corded ORS NASCO Engineered to perform better than Engineered to perform better than rubber or plastic face hammers Hammer faces are abrasion and impact resistant Designed to withstand severe striking applications and are surface protective physical exertion and heat stress Low sodium and necessary potassium Extra soft material and triple flange design seals gently and snugly without pressure The unique cord attachment with locking loop helps keep the optional braided cloth cord securely in place High visibility unique green swirls plus bright green cord make compliance checks quick and easy Plugs can be washed and reused 100% PVC Free®