Clayton Picks DURAMULTI Duraplex Guitar Picks Mega Multi Gauge Pack, 50-Pieces Duraplex Guitar Picks will resist notching and give ultimate strength, for professional performance Features polished edges Material is extruded with a grain to enhance the movement of sound along the guitar pick 50 guitar picks in an assortment of all gauges .50 mm, .60 mm, .73 mm, .88 mm, 1.00mm, and 1.14mm Made in the USA by Steve Clayton, Inc.