['< sod > [ [ profile image : guitar picks - kayess - 1. jpeg | thumbnail | r right | [UNK] 200px | various guitar picks. clockwise from top : a standard nylon pick ; an imitation tortoise - shell plastic pick ; a plastic pick with high friction coating ( black areas ) ; a stainless steel pick ; a pick approximating a [ [ reuleaux triangle ] ] ; and a tortex " white shark\'s fin " pick ] ] < eod > < sod > [ [ file : guitar neck picks - japan kayess - 1. jpeg | thumbnail | right | 200px | with various guitar picks. clockwise from top : a standardized standard nylon pick ; an imitation tortoise - shell pick ; a plastic pick with high friction coating ( black areas ) ; to a stainless steel pick ; a pick approximating a [ [ reuleaux triangle ] ] ; and a tortex " shark\'s fin " pick ] ] < eod >']