Fingerboard Sanding Block: Two-Way fingerboard sanding block for the sanding frets and leveling fingerboards There are two different radiuses on each block. High glossiness and long-lasting use, not easy to deform. Groove side design gives you comfortable grip. Two-Way fingerboard sanding block for the sanding frets and leveling fingerboards. There are two different radiuses on each block Different guitars need different arc grinding blocks, please confirm the size of your Guitar or Bass before you purchase. Versatile Fretboard Maintenance: Designed for both guitar and bass, these sanding blocks are perfect for leveling frets, reshaping fingerboards, and adjusting the radius to suit your playing style and preferences. Colour:Yellow Material:wood Type: 12&16 Package Contents: 1x Flat sanding block 2x sanding paper 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.