Fit for burnishing the guitar fret to make the surface more and rust-proof. The product is made of top 6061 Aluminium with oxidation blasting treatment, and covered with protective film all around to avoid being scratched. There are four kinds of grit paper with 400, 600, 1000 and 1200 to your different demands. Suit for electric guitar, acoustic guitar, electric , electric box guitar, etc. Two in one luthier supply -- the fret beam works both for fret beveling and fret leveling. A great assistant tool for luthiers and guitarists. Package comes with extra 4 pieces of -adhesive grit papers, which extends the using time of the fret beam. Comes with 2pcs fretboard protectors, one is wide and the other narrow. Prevents scratching or damaging to guitar or fretboard when filing and polishing frets. Fret Leveling Beam size: 15*3.8*2.5cm Item weight: 134g / 4.73oz Fretboard Protector Size: 78*22mm, 76*13mm Fret Crowning Size:18.5*2cm Note: The guitar neck showed in the is not included. colour:brown Material:Aluminum alloy + stainless steel Package Contents: 1 * Guitar Fret Beam 4 * Extra Grit Paper 2 * Fretboard Protector 1 * Fret Crowning Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.