SPRO offers metal core assist cord! They offer 5 different sizes/strengths and we chose to bring in the 2 heaviest sizes 260lb and 340lb rating. They do not offer a formal diameter spec however, the 260lb is roughly 1mm and the 340lb is 1.2mm for jumbo size fish.
- Premium Japanese Assist Line
- Three Core Styles for Tying Own Assist Hooks
- For Fish with Teeth
- Spool Length: 19.5 feet