Adding Fly Tying Lead Eyes to a streamer and saltwater fly pattern is a common technique used in fly tying. Lead eyes can often be frustrating for many new fly tiers. Dumbbell style Lead Eyes like to roll and move, even after the fly has been finished. Lead eyes are also hard to apply straight, as they are often tied in crooked and roll from side to side. This video will help you to learn how to lock down lead eyes and tie them in straight on any fly pattern!