This white phosphorescent thread will glow in the dark after being exposed to sunlight or UV light from one of our UV flashlights. Good for a butt tag, as a hotspot at the thorax, or as an underbody. You can add a glow to your flies! 50 yd./spool.
Works well and the glow is bright with UV lights. The glow "charge" doesn't last very long from a flashlight but that was just me "testing" the glow. After making a few wraps, I have to spin the thread to tighten it up again to keep wrapping. Holds well and is relatively flat.
