What it is The Hareline Dubbing Loop Prep Pad Kit is a dubbing loop preparation kit built around a thick, slotted foam block and a Large Stonfo material clip. The foam gives you a stable pad to stage materials, and the slots help you space and line things up before you spin a loop. The clip grips securely and is made to hold up to repeated use at the bench. What to tie with it Use it to build composite dubbing loops by laying out your blend on the pad, getting the mix and taper where you want it, then transferring the whole bundle cleanly into your loop. It’s also handy for organizing materials for multiple flies in a row, or for managing wispy stuff like CDC and soft hackle so it stays clamped and controlled while you work. Flies and the fish they're for Dubbing loops show up everywhere from small trout nymphs to big baitfish and saltwater patterns, because you can spin natural or synthetic fibers into shaggy bodies, collars, and brush-style heads. In trout water, loop techniques are commonly used for buggy collars and thoraxes on nymphs and wets, and for dubbing brushes that move and breathe in current. In bass, striper, and many saltwater fisheries, composite loops are often used to build bulk, profile, and motion in streamer heads and bodies where you want a full silhouette without adding a lot of weight.