Clayton Duraplex picks are made of strong Delrin plastic that resist breaking and notching while you play, to give you ultimate strength and sound. Each pick has polished edges, so there are no annoying tabs to get in your way! Duraplex Guitar Picks will resit notching and give ultimate strengthFeatures polished edgesMaterial is extruded with a grain to enhance the movement of sound along the guitar pickMade in the USA by Steve Clayton, Inc.