Quiet Reusable Earplugs, Foam, Orange, Corded, Impact Case ORS NASCO square and hex shapes More groove square and hex shapes More groove positions provide the optimum hand location for a better grip on the work piece ProTouch™ grips provide extra comfort and reduces hand fatigue Ratcheting action allows GrooveLock to be adjusted from the open position up to the work piece by pushing the handle up no need to press the button Crystolon combination for general sharpening when the speed of sharpening is more important than the fineness of the cutting edges Patented "no roll" design is easy to handle and fit Contoured shape comfortably matches contours of the ear canal Built in insertion stem makes insertion quick and easy Smooth non irritating skin provides all day comfort