Semperfli Cheeky UV Fly Tying Thread - Cheeky UV is a product Semperfli was asked to design by a top competition angler who wanted holographic cheeks on a thin film for buzzers/chironomids. Cheeky UV is an ultra-thin UV film that glows extremely vibrantly under UV torches or sunlight. Highly versatile Cheeky UV is a plastic film it can be stretched thin or used directly from the spool for lateral lines, as bodies with ribbing over, or for winging, and is ideal for buzzer or chironomid cheeks or as UV tail stubs. Perfect for buzzers sizes 8 to 16 or Cheeky UV can be stretched thinner for smaller buzzer cheeks and has no build-up whatsoever of buzzers. Cheeky UV is perfect for competition scene buzzers/chironomids or vibrant heads! Stretch it even thinner for cheeks. Do try Cheeky UV for lateral lines, UV tails, ribbing, or hotspots. There are 16yds (approx) per spool of Cheeky UV Fly Tying Thread.