The original Krystal Flash! Do not be fooled by imitations. Used on hundreds of patterns world-wide. This synthetic flash material is great for adding a little shine to your patterns. Pearl and silver are the universal colors. Red looks great for adding "gills" on a fly. Root Beer is the perfect anchovy color for adding flash to false albacore/bonito patterns. This material is an essential part of the clouser minnow, and can be used on just about any fly to give it a little extra flash in the water.