These Oiler Puffs are hand selected. Great for emergers and dry flies. These short feathers lack discernible stems and are often called nipple plumes because on a live bird, they are located on the nipple of the preen gland. Tied in as wing posts, these fluffy feathers trap a lot of air. Oiler Puffs can be tied-in the conventional way, or reverse tied to capitalize on the natural built-in bubble formed by the base of the feather. Often the bubble CDC Bubble is meant to float the fly in the surface film. In the midge pattern shown below, the bubble is not made to float the fly. It is only large enough to bring the fly into a life like vertical position as it sinks very slowly.