The Tubeology Nano High Water-Heavy Tube Fly Tyers kit is the complete system for fly tyers tying tube based flies on larger aluminum and brass tubes. Perfect for steelhead, salmon, pike, bass and other large gamefish, The Nano Kit includes of all of the components required to tie tube flies other than fur, feather and hooks! As a bonus, it includes the unique tube fly storage system for on the river storage of tube flies and components. The Fly Tyers Kit includes the unique Tubeology Fly Tying vise adapter, designed to stop the tube rotating when being tied.The Nano Kit has 30 assorted heads that can be interchanged on the river, allowing the angler to vary the weight of the tube fly and enable it to be fished at different depths to meet changing conditions. With interchangeable heads you can balance the hook and cone head allow the fly to swim naturally: No more head-up or tail-up fishing as with traditional tube flies!The Tubeology Nano High Water-Heavy Tube Fly Tying Kit includes the following:18 aluminum coneheads,12 brass coneheads,18 brass tubes (31mm, 38mm and 50mm),6 aluminum tubes (50mm),Tubeology tube liner,Tubeology 2.5mm hook retainer (clear silicone) and Luminous hook retainer,Tubeology Nano Bag