Spirit River UV2 Sculpin Wool combines UVF and UVR spectrums for enhanced underwater visibility, making it ideal for tying sculpin fly patterns and baitfish heads on streamers. This UV2 fly tying material is not only easy to tie and trim but also offers a unique advantage in attracting fish. The wool is spotless, consistent, and remarkably user-friendly, perfect for a wide variety of fly patterns. Its UVF properties allow fish to spot your flies from greater distances, while the UVR rays, invisible to the human eye, provide a reflective and enticing view for fish and insects.