Baroque fingerboard eraser is made of natural rubber and emery by a unique foaming process. The hardness of emery makes it an efficient and durable polishing tool, suitable for guitar keys and strings. Because of its soft and elastic properties, Baroque polishing and grinding rubber blocks can perfectly fit the fingerboard and the strings, reducing the damage to the fingerboard and the strings during use. They can also be cut into different shapes to facilitate the grinding and polishing of different metal parts. This products has five different grit numbers, including 180, 400, 1000, 1500 and 2000. Baroque fingerboard polishing can solve various problems, such as scratches, corrosion and oxidation of fingerboard crown files, and rust of fingerboards and strings. For more serious corrosion or oxidation, smaller grit numbers can be used, and . The polished eraser of Baroque fingerboard is marked with clear numerical values, which makes it easy to identify, and there are many color combinations to choose from. They are designed to adapt to the strength of and are beautifully packaged. However, please keep from children, because it looks like delicious candy. Guitar fingerboard eraser is suitable for guitar, bass, ukulele, mandolin, banjo and other stringed instruments. Baroque fingerboard eraser combined with baroque fingerboard crown file is an perfect polishing and cleaning tool for professional guitarists and DIY enthusiasts. Color: As Shown Material: Rubber+diamond Package Contents: 1 x 180 Grit Fret Eraser 1 x 400 Grit Fret Eraser 1 x 1000 Grit Fret Eraser 1 x 1500 Grit Fret Eraser 1 x 2000 Grit Fret Eraser Only the above package content, other products are not included. Note: Light reflection 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.