This Trilogy of 3 Jazz III picks is selected for use on electric guitar, mandolin and other fretted instruments requiring a hard or very hard pick. These picks are the classic Jazz III shape giving you complete control of your picking. This Trilogy features the US Blues® Signature "Arc of Tone" from the following three materials: Ebony, Sonokeling & Tamarind. Each is selected to offer excellent strength and attack and are also beautiful with varying grains, vibrant colors and feel great between your fingers. US Blues® offers music accessories made of sustainably sourced exotic materials that improve the tone and modulation of your instrument and therefore your overall playing and enjoyment. We use by-products of various industries, such as guitar making, to source materials that otherwise would not have been re-purposed. We strive to bring the quality of your music to a new higher level and are proud to have elevated the guitar pick to the level of "Pick as Instrument".