A hybrid between a thread and a fine round tinsel, Iridescent threads are a fine tinsel wrapped around fine monofilament strands as a core. For fly tying, it acts like a fine wire. When wrapped tight around a fine hook, the strands of tinsel can be opened slightly to create a slightly faceted, gleaming surface. Though developed initially for vibrant buzzers (pupae) and chironomids, these threads finished up to be ideal for trout, salmon, satlwater and predator pattern bodies, thoraxes and vibrant hot spots. 45m (48 yds) per spool.