THESE BRAND NEW TOP QUALITY HIGH DIAMOND CONTENT POLY DIAMOND EMULSIONS SPRAYS ARE AVAILABLE IN THIS LISTING FROM 0.25 MICRON TO 4.0 MICRON SIZE. THEY CAN BE USED ON LEATHER STROPS AND OTHER STROPPING MEDIUMS TO ACHIEVE PROFESSIONAL LEVEL CUTTING EDGE OF KNIFE BLADES, RAZORS, HAND TOOLS AND VARIOUS TYPE OF CUTTING BLADES