Spirit River UV-2 Diamond Brite Dubbing is a mixture of fine flashy fibers and UV-2 materials which are both UV-fluorescent and UV-reflectant. Sparse amounts are enough for giving your flies a strong trigger-point or hot-spot - extremely visible even in turbid water or in low light situations. Ideally suited for creating bodies, heads, thorax regions, hot-spots and trigger points on all your streamers nymphs and dryflies.