Set2: 1 x String Cutter + 1 x Polished Tool + 2 x Fingerboard Guards + 2 x String Tedders & 20 x FretwireComplete Set of 20 pcs. Fret wiresFits acoustic guitarLength ranges from 1.72 inch/43.8mm (shortest) to 2.24 inch/57mm (longest)Each fret crown width is approx. 0.078 inch/2mmFINGERBOARD GUARDS ergonomic grip prevents fingers from getting in the way. Fingerboard guards can prevent scratches or damage to the fretboard when pulling and polishing fretsString spreaders fit behind the guitar's neck to grip loose strings and give you room to assemble, clean, polish, or light repairsPractical and durable, everything you need to keep your guitar frets well set up, replaced, and clean. So every guitar gig bag must have, the best gift for guitarists who keep their guitars upFingerboard covers: prevent scratching or damage to the fretboard when pulling and polishing fretsPolished tool: polished fretsColor: multicolor/silverMaterial: stainless steel, ABS/copperString spreaders: grab loose strings and give room for folding, cleaning, polishing, or light repairsString cutter: cut string and pull out frets and PinsPackage Contents:1 x String Cutter1 x Polished Tool2 x Guard Fingerboard2 x String Spreaders20 x FretwireNote:1. Knife string cutter-edge can leave