Item Type: Guitar Luthier Tool Set Product Material: Stainless Steel + Abrasive Paper 15cm Leveling Beam Size: Approx. 15 x 4 x 2.5cm / 5.9 x 1.6 x 1in Fret Crowning File: Approx. 18.4 x 1.6cm / 7.2 x 0.6in Big Fingerboard Protector: Approx. 7.8 x 2.3cm / 3.1 x 0.9in Small Fingerboard Protector: Approx. 7.8 x 1.3cm / 3.1 x 0.5in String Height Gauge: Approx. 8.8 x 5cm / 3.5 x 2in Yellow String Spreader: Approx. 9 x 1cm / 3.5 x 0.4in Package List 2 x Yellow String Spreaders 1 x Blades Feeler Gauge 2 x Fingerboard Protector 1 x String Gauge 1 x Fret Crowning File 1 x 15cm Fret Leveling Beam 1 x String Height Gauge 8 x Abrasive Paper 1 x Black Storage Bag The size is measured manually, the error is about 1& 8209;3cm, please refer to the actual product. 1Made of stainless steel, the file with a comfortable handle allows for easy and efficient trimming. 2Designed for setting the tone, adjusting movements, checking the height of the strings, etc. 3Very suitable for maintaining and keeping the instrument in an ideal playing state. 4The guitar string ruler tool is marked with scales to measure the height of the strings, and so on. 5The fingerboard protectors help protect the fingerboard from scratches or damage during filing and polishing. 6The guitar string distributor makes maintenance, setting and cleaning more convenient and efficient.