This Pack of 3 Artist Quality Bamboo Guitar Picks is recommended for acoustic and acoustic electric guitar. Our Bamboo is golden brown and dark brown with a thin, straight grain and a matte luster. Bamboo is a medium hard wood and is appropriate for increasing modulation and creating a bright tone on both acoustic and acoustic electric guitars and ukuleles. Bamboo creates a crisp and loud overall range. Bamboo, known for its use in instrument reeds, as well as other non musical purposes, provides a useful pick material for certain purposes such as increasing the overall volume and creating a loud plucking sound when not amplified. Bamboo is one of the most sustainable woods in the world. 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 repurposed. 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".