This synthetic fur is designed with three different lengths of fibers that are as long as 4 inches. The underfur makes a good dubbing. The middle fibers when used with the long fibers will help build bulk in wings and tails. We suggest doing a reverse tie in. Once you have your different colored fibers tied on, advance your thread to the front of the hook. Then pull the entire wing back towards the hook and tie off. This makes a great silhouette. Add some 3D eyes and you're ready to go.