Six feet of beautiful, durable 18% nickel-silver fret wire | Great for acoustic & electric guitars, banjos, dulcimers, cigar box guitars & more | Six feet is enough for any standard guitar, comes in 8-inch pre-radiused lengths for ease of install | Great for new building or repair work. Jescar is high-quality German-made fret wire | Crown Width: .080" (2.03mm); Crown Height: .043" (1.09mm); Tang Depth" .050" (1.25mm). Recommended Slot Width: .023"