I use this jaw grip especially after getting hooked. I loop the strap around my wrist and it locks on the fish's jaw. Doing so paralyzes the fish like a thumb holding a bass's jaw at an angle. Fish stop moving completely.
A friend gave me this a few years ago and I found it works better than Berkley's jaw grip which is heavy and takes up a lot of room. It's around 8 bucks/ free s/h with Amazon prime.

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