●Grooved cow bone nut. For Les Paul Guitar ●E to E String spacing: 36.2mm, flat bottom ●Size: Length (approx.) 44.07mm; Width (Width): 4.98mm; Height (Height): 9.30mm ●The cow bone nut is the most common material for easy processing, moderate oil and smooth string movement. The sound quality has a nice rise and a crisp feel ●Package included: 2 pcs