1. Leveling bar: Made of aluminum alloy, strong, and fine workmanship. There are different sandpapers on the four sides of the frets-leveling bar to meet your different polishing needs.|2. Guitar string spacers: Help you handle the fingerboard or frets without disassembling the strings, making setup, maintenance and cleaning projects more convenient and efficient.|3. Fret file: Made of stainless steel with a comfortable ergonomic rubber handle to save time and energy.|4. Applicable object: Suitable for acoustic guitars, electric guitars, ukulele, bass, and other stringed instruments. Suitable for luthier, string instruments user, guitar, DIY tools for many workers.|5. Convenient to carry: The guitar maintenance tool has a rectangular small cloth bag, which is small, easy to store and carry.