This streamers may be tied as deceivers, imitations of local small baitfish or as vivid colorful attractors that suggest something alive, edible or a threat.
The attractors are also designed to stimulate a predatory fish's aggression. These Sparkler small bait fish flyfishing flies certainly do that.
They caused a storm on the European Fly fishing competition circuit when they were first used because they are just so good at catching fish.
1 fly €0,85
Box of 4 flies €3,20