Precision engineered for top quality fly tying performance, this larger sized bobbin holder from Stonfo sports an ergonomic handle specially designed for tying large flies and streamers. Its sturdy structure is made entirely of stainless steel. Its weight of 42 grams helps to maintain a good tension on the tying thread. The central shaft guarantees the maximum stability of the spool, while the two knobs allow the perfect adjustment of the tension. The large tube with hardened steel bushing allows the use of voluminous materials like floss, micro-chenilles, and more. This bobbin holder is perfectly balanced during rotation and is therefore ideal for twisting threads and building dubbing loops.