Material: Black Horn. Instrument: We recommend Tribal Tones for Gypsy Jazz Guitar, Electric Guitar, Acoustic Guitar & Arch-top Jazz Guitar. Tone: Buffalo Horn has the closest tone to the fabled Tortoise shell picks as it is made from the same Keratin material and thus warm and rounded. Design: Tribal Tones are designed for those who require a seriously heavy duty and hard-wearing Guitar Pick. The Black Buffalo Horn is 3.3mm thick where you hold them and chamfers down to 0.7mm at the playing tip. The tip is very pointed and sharp, giving precision and speed making these guitar picks ideal for thrash picking or Gypsy Jazz. They have been Laser Etched on one side for extra grip. Contents: This tin contains one of each of the Tribal Tones Guitar Picks.