A guitar pick is a plectrum used for guitars. Picks are generally made of one uniform material, such as some kind of plastic, rubber, felt, tortoiseshell, wood, metal, glass, tagua, or stone. They are
Various guitar picks. Clockwise from top: A standard nylon pick; An imitation tortoise-shell pick; A plastic pick with high friction coating (black areas); A stainless steel pick; A pick approximating a Reuleaux triangle; and a Tortex "shark's fin" pick