D’Andrea USA’s 351 “Traditional” Shell Celluloid Guitar Picks are made of the highest quality celluloid available worldwide! Our celluloid material comes straight from the Delmar Products, Inc. Vault which has been supplying celluloid for guitar picks, pickguards and more to well known worldwide music instrument manufacturers for decades. The unique combination of durability and “memory” make this pick the top choice for the serious player. Proudly Made in USA!