Chrome Frets CF08 Silky Strings All-In-One Guitar Polish and String Cleaner All in one tool to keep your fretted instrument in its optimum playing condition Re-hydrates freeboard, lubricate nut and saddle, and does a full 360 degrees plus corrosion inhibitor and lubricant, which retains tone and reduces string breakages. Unlike other products in the market, Chrome Frets has a dry feel and does not leave sticky residue on the freeboard