Amazon.com: Kaynes 43mm Height Adjustable Brass Roller Guitar Nut Replacement for Les Paul LP SG Style Electric or Acoustic Guitars : Musical Instruments
Radius Less Roller Nut "R.R.N.2" - Designed for eight-string instruments
Radius Less Roller Nut "R.R.N.1" - Designed for six-string instruments
ABM Guitar Roller Nut 1-5/8"43MM Height Adjustable Nut Brass for LP Les Paul SG | eBay