SEMPERFLI Fluoro Brite € 1.80 Fluoro Brite is a twisted fluorescent thread. To lay it perfectly flat simply untwist and use as a flat floss. Vibrant uv and irresistible colors, specially formulated for fluorescence. - + Shop This product has been added to your cart. Reference : 886741001212 Category : Fly tying Brand : SEMPERFLI _ : _ C Semperfli : Purple Description Reviews Product details Fluoro Brite is a twisted fluorescent thread. To lay it perfectly flat simply untwist and use as a flat floss. Vibrant uv and irresistible colors, specially formulated for fluorescence.It comes in 240 denier (3/0) and is recommended for hooks 10 to 2/0. For smaller flies, Fluoro Brite will split down further for you. Use it as a hotspot, for ribbing, a body or even a fab hot spot tail. There are 25m (approx ) per spool. Add review