[3pcs Fret Erasers Grits]Baroque Fret Polishing erasers are embedded with 180 400 1000 grits. 180 and 400 are aggressive enough to remove deeper scratches and the 1000 leaves a very smooth finish. | [Polishing and Cleaning Up Frets&String Like Magic] Excellent fret and string cleaner that help to cleaning up rust and oxidation on the guitar fret and string very effective. | [Simple to Use and Environmental ]It just like the pencil erasers, rub the edge on a fret in successive grits and you'll see and feel the difference.Much easier than sandpaper, steel wool or files.Environmental friendly, It will not produce floating dust like sandpaper. | [Will NOT Hurt the Fretboard]Baroque fret erasers is made of soft&flexible rubber, which means it will deform under proper pressure so it can matches the shape of the fret perfect and does not damage the fretboard. It can be cut as you wish to complete job. | A perfect partner with Baroque fret crowning file. Warnings:Because this fret erasers smell like candy,please do NOT try to have a taste and please keep it away from kids.