Flash materials are an important ingredient in many flies especially the Clouser Minnow and Darter series. They add life like movement and light refraction to many fine fly patterns. Bob claims it is one of the most effective fly tying materials introduced in decades. Clouser Floating Minnow Head Making Kit Calf Tails - Clouser Select Deer Tails - Clouser Select Dumbbell Painted Lead Eyes Clouser’s E-Z Foam Cylinders Clouser’s E-Z Foam Cylinders - Small Estaz Grande Estaz Metallique Flashabou Krystal Flash Metallic Eyes Plastic Fly Sleeves Rabbit Fur Strips Rabbit Fur Strips - Cross Cut Red Fox Tail Select Tying Materials For The Original Clouser Crayfish "New" Tungsten Dumbbell Eyes Clouser's Ultra Wire The Traveler - Clouser Fly Tying Vise