Strop both sides of the knife simultaneously, providing faster, sharper, and more durable results Compatible with all Wicked Edge models Polycrystalline Diamond Emulsions provide the most consistent finish available for stropping Ideal for creating a highly refined edge Leather Strops with 7ml bottles of water-based 1-Micron (blue) and 0.5-Micron (yellow) Polycrystalline Diamond Emulsion. This pack is best used after the 3000 Grit Diamond Stone or the 3-Micron Diamond Lapping Film. Each application of the Polycrystalline Diamond Emulsion is good for 15-20 sharpening sessions before needing to reapply. This pack comes with 2 handles and 1 bottle of each emulsion.