Feature: 1. RUSTPROOF MATERIAL: The main body of the guitar post sanding and leveling beam is made of aluminum alloy material, rustproof, strong, fine workmanship 2. FOUR SIDED SANDPAPER: Guitar fret leveling file comes with self bonding sandpaper all four sides to suit your different polishing needs 3. PORTABLE TOOL: Guitar string sanding beam is small, lightweight, easy to carry and use, ideal DIY luthier tools 4. WIDE APPLICATION: This fret leveling file is suitable for all electric, acoustic, classical guitars, etc. 5. PACKAGE INCLUDES: Guitar leveling file kit comes with a guitar post leveling beam, two guitar fingerboard retainers, a replacement sandpaper and two sharpeners Specification: Item Type: Guitar Fret Leveling File Material: Metal Product Size: Approx. 15.2 x 3.85 x 2.55cm / 6 x 1.5 x 1in. Package List: 1 x Sanding Kit2 x Large and Small Pieces of Fret1 x Mixed Sandpaper2 x Sharpen Knife