Stainless Steel Files: Made of high-quality steels, perfect tools filing string slots into nut and bridge.
File size: 0.4 mm / 0.5 mm / 0.6 mm / 0.7 mm / 0.75 mm / 0.8 mm / 0.9 mm / 1.0 mm / 1.05 mm / 1.1 mm / 1.2 mm / 1.4 mm / 1.6 mm, grinding length 25 mm, shank length 30 Millimeter.
Bone bridge saddle and nut: real buffalo bone saddle and nut, which can offer a better tone than plastic.
Sandpaper: 70mm*90mm, 9 sheets (3 sheets of 320 grit, 6 sheets of 240 grit)