The Nikki Sixx Helix HD SS Bass Strings are the latest addition to the Dean Markley family of legendary quality and innovation. When you put these suckers on your bass, you get the exact strings in the exact gauges Nikki uses in his wild performances. They're built to take a Nikki Sixx kind of licking without losing any of their ferocious bite. Nikki’s HD SS bass strings are made of a special stainless steel alloy that has an inherent bright and cutting timbre to it. It gives the strings an unforgettable “stainless” tone. Helix SS bass strings feature the Hyper Elliptical Windings (compressed from side to side), which gives Helix more mass and tone, as well as extended life. This Hyper Elliptical winding is what gives Helix a more relaxed feel, with a lot less squeak and sliding noises than normal strings. Gauges: .050, .070, .090 and .110