Assortment Kit (7 of each grit) Alpha 5in Sandpaper for Stone Polishing</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>50 pieces per box.</li><li>Use wet or dry for high quality polishing.</li><li>Maximum 4000 RPM with a hook and loop backer pad sold separately.</li><li>Silicon carbide for sanding and polishing marble， travertine and onyx.</li><li>Sandpaper can also be used to polish glass， metal and wood.</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/41r0sLsNdcL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41WKITl7tVL.jpg' noproxy></br>