The Gel Core Fritz is a synthetic chenille fly tying material that features a gel core. This will keep the fibers in place when tying different fly patterns. This material is dyed using a computer controlled method to ensure the color is consistent and vibrant. You will love using the Flybox Gel Core Fritz; it&';s easy to use and will never fall apart while tying flies. Dyed to the core Easy to use Won&';t split or fray Array of unique colors Gel Core bind fibers together, no more fiber loss Qty. per pack: 1