Knot pullers?
Way of Fishing
Thirty Fathoms Knot Pulling Tool - TunaFishTackle
Knot puller?
It's Knot just for tying Knots!
My Tackles
Accurate 4 Knot Pullers — Charkbait
Accurate 4 Knot Pullers — Charkbait
Fishing Knot Puller Tool Assist Fishing Knotting Tension Line
Accurate Knot Puller - 3in - TackleDirect
The Accurate Knot Puller is a great tool to cinch your knots tight without the risk of injuring your hands. The Accurate Knot Puller comes in two different options; a 3 inch and a 4 inch option to choose from! It consists of two pieces that screw together to be compact to fit in a pocket or tackle box. There is a hole at the top for a key ring and a slot that can be used to put a hook through for cinching down knots at that location.
Accurate 4 Knot Puller