What it is
Hareline’s The Amazing Glo Bug Dispenser is a tying tool made to hold and feed egg-fly material in tidy, pre-tapered tubes. At the bench it lets you thread material precisely onto the hook, and it’s built to stand up to regular use. The tapered tubes help you control bulk so the egg body stays consistent from fly to fly.
What to tie with it
Use it to build egg fly bodies by threading the egg material on, positioning it on the shank, and securing it with your tying thread before trimming. It’s meant for clean, repeatable egg profiles when you’re tying a bunch of the same pattern and want each one to land in the same size range.
Flies and the fish they're for
The classic pattern tied with this system is the Glo-Bug, fished as a drifting egg imitation. It’s a staple for trout in rivers and tailwaters when fish are keyed on eggs, and it’s also commonly used for steelhead in Great Lakes tributaries and West Coast rivers. Fish it dead-drift under an indicator or tight-line it through runs where eggs naturally tumble.