Umpqua U-Series Specialty U502 Fly Tying Hook - Finally… An economical option for all your bass bug needs. The U502 takes a straight eye, traditional bass bug shape and places it on a 1X strong black nickel wire perfect for classic and modern patterns alike. This hook is part of Umpqua’s U-series of hooks, offering the serious fly tyer a value-based hook alternative to the current offerings on the market. U-series hooks feature high grade carbon steel, micro barbs for easy penetration and de-barbing, along with a logical numbering system for hook use identification