United Abrasives/SAIT 58181 AOX 4 X 21 36 Grit Blue Line Sanding Belt， 5-Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Aluminum oxide grain， open coat</li><li>X-weight cotton</li><li>For general purpose sanding and grinding where an open coat is needed</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51DoGrBfBIL.jpg" noproxy>