Spirit River UV2 bucktails are treated with a specially formulated UV2 dye. This proprietary dye process enhances the bucktail with UV fluorescing and reflecting properties, increasing the visibility andgiving off a natural color spectrum that fish are attracted to. The hair fibers are long and perfect for all fly tying, jig tying, and lure making applications. If you’re looking for quality bucktails with a secret advantage, give these UV2 bucktails a try. Available in 22 beautiful colors