Bosch SB4R121 10-Piece 120 Grit 3 In. x 21 In. Sanding Belts</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Open-coat， resin-bonded aluminum oxide abrasive provides long life and fast material removal on wood and other surfaces</li><li>Butt-splice construction for smooth running in both directions on portable belt sanders</li><li>Cross weight backings provide durability and longer belt life</li><li>Designed for superior performance on wood， metal， plastic， fiberglass and other materials</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41LYdomYqhL.jpg' noproxy></br>