Vintage Black Beauty capacitors, NOS, are new. Highly recommended. Tested and working with a tester and guitar; values are good. .02 400v Standard and popular value. A standard value for humbuckers in guitars; voltage is optimal. Excellent sound quality. Also suitable for other electronic components. Black Beauty capacitors are famous for being original parts in old Gibson guitars. It's not just that old Gibson enthusiasts like to talk about them; the sound actually changes dramatically. Black Beauty has little undulation and features a very straightforward sound quality. If you're looking for a biting sound with undulation, Bumble Bee is the choice, but the straight, uncolored extension of Black Beauty is popular. The 160P used by Gibson at the time is popular, but items with red lettering like 4TM are marked as 160P on the new bag. From a certain period, the 160P marking disappeared from the body. For other model numbers, such as those with green or yellow lettering, there is almost no difference in sound quality.