DMTDIASPRAY Dia-Spray, A sprayable suspension with 0.5 micron diamond, so the grit can be easily applied to any stropping material. The DiaSpray grit provides the ultimate edge result for serious sharpening enthusiasts who seek the utmost mirror finish. Each bottle contains 0.85 fluid oz./25 ml. Great for achieving the finest polished edge that results in clean, effortless cutting and shaving. Use frequently to keep edges sharp and reduce sharpening needs. Use for woodworking tools, straight razors, wood carving tools, knives and more. Use any of the following as strop material: leather, thin cardboard, denim, MDF, balsa wood. 0.5 micron = 30,000 USA grit (mesh) for an ultimate edge. Bulk packed.