Nature’s Spirit Disco Dub is a great ice dubbing or Prism Dubbing substitute. Its 100% synthetic flash fibers that come in 32 colors. The fibers have great color throughout and catch and reflect a lot of light for such a small fiber. Fibers are a few inches long and can be trimmed or pulled in your fingertips and broken to the wanted length then dubbed on your fly or mixed with other dubbings or materials to give extra color or flash.