ELECTRIC GUITAR STRINGS ROLLER WOUND LIGHT: .009 .011 .016 .024w .032 .042 DR Strings High-Rollers are unique sets of strings with great tone and a smooth, comfortable feel with less finger noise. That's because the High-Rollers Rockers are made with a nickel plated steel (NPS) wrap wire that is slightly flattened by rollers in the winding process. The resulting half-round winding is smoother for effortless sliding and less squeak. One of the only NPS rollerwound strings to be found, the High-Rollers are great for any style of music. DR HR9 High-Rollers NPS Roller Wound Electric Strings (9-42) DR-HR9$5.56 Click here for more information on Half Round windings.