Guitar Luthier Tool set, Suitable for Luthier, String Instruments User, Guitar, DIY for many fret works. Guitar Fret Leveling Beam - Made of aluminum alloy material, rust-proof, strong and fine workmanship, with self-adhesive sandpaper strip on four sides (400, 600, 1000, 1200 grit), which can meet your different polishing needs. Guitar Fret File - Made of stainless steel, with ergonomic rubber handle for comfortable holding. Size: filing surface is 4 inches in length, rubber handle is 3.2 in length; which is applied to narrow fret crowning after leveling Fret Rocker - Made of stainless steel and has 4 flat and straight edges, which can help your to detect any discrepancy existing in frets height Fingerboard Guard with Grinding - Designed to protect your guitar or bass fretboard from scratching or damaging while filing and polishing Colour: as shown Material: Stainless steel+Rubber+Metal Package Contents: 1 x grinding lever 1 x file 1 x green grindstone 1 x red grindstone 1 x 2-hole Triple-cornered ruler 2 x spacers Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.