About 4.5cm long and attached to a 50cm wire trace.
I retrieved it from the throat of a decent fish I caught this season…..
I remember reading Dick Walker and maybe Peter Stone talking about using fish baits for barbel in early season….
In the past Ive had several tench on spinners and a 7lb bream on a spoon, all by accident. Also chub on lures by design.
And (lots of) carp on deadbaits, all as bycatch.