Features:<br />In the grinding block glue on the 600 h-ead sandpaper arc polished, and then polishing the special s-ilk polishing, conditions can be re-use the crown file reshaping.<br />As different guitars require different radian polished blocks, acoustic guitar generally use 12,14,16 arc, electric guitar generally use 10, electric guitar generally use 9.5.<br />Mini size &amp; lightweight, it is portable &amp; space-saving.<br />Made of superb material, long-lasting &amp; endurable.<br />Make your l-ife be full of sound and colour. Nice l-ife assistance for you.<br/>Specifications:<br />Type: 7.25/9.5/10/12/14/15/16/17/20(Optional)<br />Material: Solid wood<br />Polished blocks: 130 * 65 * 40mm<br />Matte paper (600 grit): 130 * 65mm<br />Package size: 180 * 80 * 50mm<br />Package weight: 240g<br/>Packing list:<br />1 * Polished Block<br />2 * Matte paper