DR Strings BRB-45 Black Beauties Bass Strings - Extra-Life, Black-CoatedSince 1989, DR has been committed to crafting hand made, superb quality instrument strings. By blending the best of old fashioned handmade craftsmanship with cutting edge materials or string coatings, DR continues to push the boundaries of the string making process. That commitment to quality is what has brought countless top flight bassists and guitarists to string up with DRs from U2's Adam Clayton to Phish's Trey Anastasio and everywhere outside