Treated myself to these:
Those are also magic; I put them on the wish list, and they appeared.
For flat, parallel jaws, they're unbeaten. For a more traditional "Polygrip" with serrated jaws (as they're called in Sweden, they're "Wasserpumpenzange" in German, and I'm not certain in English.) I prefer the Bahco over the Knipex:
The adjustment here is made by pressing the button on the back, which is a more positive size lock than the traditional "open wide, then slide" that Knipex made popular.
"Water pump pliers" is a very good description, although I have only used them in that capacity a few times.
(German is sometimes very easy to translate "by inspection").
We used to call them 'Multigrips" or "Slip joint pliers" back in the day-----the latter was a good name for some of the early ones, which really liked to slip!
I prefer the locking type of pliers (Vise Grips), or for big, brutal work, the old "Stillson wrench".
Back in the day, my brother was using a pair of German made "Vise Grips" under his car.
Finishing with them for the moment, he clamped them onto the "stabiliser bar", so they didn't skitter out of reach as tools are wont to do.
As it happened, he didn't need them again, so slid out from under, cleaned up & went out.
Next time he needed the Vise Grips, he couldn't find them, so grumbling, he "made do" with a substitute.
A few weeks down the track, Bro had occasion to climb under the car again, & there they were, still clamped securely where they had been left!