Cow Horn Guitar Plectrum (Tortoiseshell Substitute) Guitar plectrum made from genuine cow's horn Cow horn is a very similar material to your fingernails and therefore is hard wearing and gives a nice warm sound It's also probably the closest you will get to real tortoiseshell. As with many natural materials, the colours (and even the curvature to a degree) will vary, each one being unique. Comes in one gauge - thick. * PLEASE NOTE YOU ARE PURCHASING A SINGLE PLECTRUM*