Dean Markley Alchemy Randy Jackson Bass Guitar Strings - After months of R&D the companys engineers developed a design that incorporates three different styles of strings into one combination string. The new Randy Jackson Alchemy Bass strings have a unique core-to-wrap ratio for proper tension, and a great sound and feel. And they have Stainless Steel under wraps, and they have our proprietary MC394 Gold cover wrap treatment over Silver-Plated NPS for added life. The end result is a string that delivers the sound benefits of a Stainless Steel bass string with the feel, tension, and growl of a Nickel Plated Steel string that will last a long, long time.