This is six feet of beautiful, durable German-made 18% nickel-silver fret wire, in handy pre-radiused 8-inch lengths. It has a slight radius (arc), which can be adjusted as necessary to match your instrument. The radius is roughly 10.5". This fret wire can be used to repair/replace frets on an existing guitar, or for new instrument building. The dimensions are as follows: Crown Width: .080" (2.03mm); Crown Height: .037" (0.94mm); Tang Depth" .050" (1.25mm). Recommended Slot Width: .023"