The Ernie Ball Regular Slinky Coated Electric Bass Strings combine the latest technological advancements in string manufacturing. All wound strings are treated with ground-breaking nanotechnology that repels unwanted moisture and oils that negatively impact your tone. These strings maintain the feel and sound of uncoated strings, combining the added protection with the vibrant tone. Gauges .050, .070, .085, .105. Features: Treated with groundbreaking nanotechnology that repels unwanted moisture and oil Maintain the feel and sound of uncoated strings Combining the added protection with the vibrant tone