Gauges 40-50-75-90. Flatwound. Monel. Short scale. One of the original Rotosound sets from the early 1960s. These strings can be heard on many famous albums, used over the years by Sting, Phil Lynott, Steve Harris and John Deacon. Outstanding brilliance and superb tone. Rotosound makes the world"s most famous and highest quality electric bass strings.