HMH Hybrid Tubing. These new HMH Hybrid Tubes are rugged enough to tie on directly. They'll also nest perfectly with our HMH Micro Tubing to create flies with standard drilled cone and bead heads or flies with smaller heads and tapered bodies. No need for junction tubing as the Hybrid tubes come in two size (large and med.) to accommodate most hook eye sizes. The HMH Micro Tubing works equally well with both sizes. Comes in 36" lengths.