Fred Kelly Picks Delrin Speed Large Guitar Picks (24 picks) Light Delrin Speed Large Guitar Picks (24 picks) Light Fred Kelly's Speed Pick was designed to be fast on the strings The long, slim shank allows for precision, speed, and truer tonal clarity It has a comfortable, yet securely fitting thumbhole, and is available in the delrin material Delrin is an extremely strong material, and provides a soft and natural sound on the strings