Thick foam pads with diamond grit embedded. 10,000 Grit for super fine finishing. These pads f=give an excellent finish and conform closely to the surface. May be used dry but will perform best when used wet. Max speed 1200 RPM Velcro backed for quick attach/detach from your backer pad. Suitable for grinding and polishing jewelry, glass and rock, etc. See our other listings for a wide range of diamond polishing pads, files, burrs and grinding wheels. GST Invoice supplied with all products purchased.