2 pcs Steel Plate Measure Luthier & 1 set Fret Press Caul Fingerboard Pressing Tool Fretboard protector suits for guitar, bass, mandolin and banjo etc. Protecting your guitar or bass fretboard from scratching or damaging while repairing frets. It also can be used as a measuring tools.durable quality for long life time. 2 different thickness,0.010 inch,0.020 inch Steel sheet: Perfect tool for luthiers, guitarists, and many DIY fret works. Material: metal Item Size: 152 x 12.5mm / 6 x 0.5in colour:Silver fixture: Soild, very sturdy, bright and shiny, long service life. Guitar Fret Caul, Insert, Hex Wrench, Repair Maintenance Tools. RADIUS OF INSERTS: 7.25/9.5/12. Easy and accurate fretting on different radiused fretboards. USED TO: Help you to press in frets on any string instrument. And marks on the inserts, easy to identify and use. colour:black material:alloy Package Contents: 2 x Steel sheet 1 x fixture 3 x Fret installation piece (7.25/9.5/12) 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.