Check the listing for details. Dunlop Guitar Picks 12 Pack Celluloid Shell Heavy. Color: Shell, Condition: New, Made in United States. Listed at 10.15 USD. Celluloid is the "classic" guitar pick - the original humane alternative to tortoise shell. Snappy tone, precise picking and excellent memory make celluloid a superior choice for your pick needs. Classic 351 shape. From Dunlop, the first name in guitar picks. Dunlop guitar picks are a top choice of today's pro musician! Dunlop's wide variety of gauges, shapes, sizes and materials allows the player to select the exact pick for his/her own particular style of playing. From classic country to nu-metal, every great player knows that their pick is an integral part of their tone, and Dunlop guitar picks are the picks that more pros rely on in the studio or on stage. Picks are a grossly underrated accessory.