Metal Tying Tool Bobbin Holder (Bobbin not included) Length 10.7 x Width 2.2 cm Used for fixing guides and reel holders to rods during rod building, such as for casting rods. Can also be used for tying fly fishing flies. Images 3, 4: State with thread spool attached. In this state, thread is wound onto the rod or hook (tying). I think the condition is good. Please purchase only if you understand that this is a used item. No returns, no price reductions. Thank you for viewing.