Manual/Automatic Fishing Knot Tying Tools - 2 Types Includes trial nylon thread Both appear to be original copy products. I bought them with the intention of using them, but ended up not using them, so I'm putting them up for sale. Those who know these tools will recognize them just by looking. Unused. As a bonus, I'm including a size 1 nylon thread for trial use. If you're okay with them working, how about it?