Set of 12 fret wires sufficient to fret a 2 octave (24 frets) guitar or bass. 
This Ringing stainless steel fret wire  from Sintoms has a high cobalt content and is of an extra hard quality for durable playing on your guitar. These frets produce a smooth, natural sound with extra sustain.
The measurements of this fret wire are:
Crown width: 2.8mm
Crown height: 1.4mm
Total height: 3.3mm
Tang width: 0.5mm