OOTDTY The wood is selected with high quality maple material, durable and has better performance. The design according to human engineering mechanics will make polishing more labor-saving. Professional and practical design for wood radius grinding block tool for luthiers, easy to carry and use. We offer three wooden blocks with different radii for you to choose from. You can choose the size that suits you. Professionally made, the surface is smooth and accurate, and the polishing is more smooth. Specification: Material: Maple Color: As the picture shows Package Weight: approx.340g Size Options: 7/10/14Sandpaper Size: Approx.146x65mm/5.75x2.56in Sanding Block Size: Approx.150x75x35mm/5.9x2.95x1.38in Please refer to the picture for detailed size. Package Includes: 1pc x Sanding Block Radius2pcs x SandpaperNote: Please allow 1-3mm error due to manual measurement. Make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!