Six feet of beautiful, durable 18% nickel-silver fret wire * Great for acoustic & electric guitars, banjos, cigar box guitars & more * Six feet is enough for any guitar, comes in 8-inch pre-radiused lengths for ease of install * Great for new building or repair work * Crown Width: .090" (2.29mm); Crown Height: .055" (1.40mm); Tang Depth" .062" (1.47mm). Recommended Slot Width: .023"