Dr. Slick Glass Bobbin 4"

These are awesome, inexpensive bobbins that work great! Bobbins are the critical tool in tying since they must keep smooth tension on the thread spool and have super smooth inserts to apply the thread to your fly. These have a glass lining, which is less likely to develop burrs or other issues. The Delrin feet keep your thread spool spinning freely as well. Great value!