Jim Dunlop frets are used by many guitar manufacturers. They are slightly harder but have excellent durability and wear resistance. These are small-type frets, similar to Fender vintage and Martin size frets. ACCU-FRET fret wire is manufactured from an alloy of nickel and silver. "HARD": More difficult to shape, suitable for large radius or flat, classic fingerboards. 70mm, set of 24 W: 1.99 x H: 1.10 x L: 0.5 (mm) JIMDUNLOP #6230 Brand new, unused. The packaging has some minor damage. Thank you.