Taylor DarkTone Series 351 picks in a special Black Onyx Thermex material designed to enrich the warmth of your guitars tone. Made in USA. Taylor Item No. 80716 - 1.0mm DarkTone 351 Black Onyx Thermex Ultra Picks, 6 PackGet your Taylor DarkTone Series Picks today, with the security of our many decades of experience and Sam Ash Music s efficient order processing, your satisfaction is guaranteed!