I have the larger size. About the size of normal Chanellocks.
Great tool , bit spendy but real nice.
Agreed. And here's my opinion based on my experience using them...
I have two pair of the 10" pump pliers. They bite harder than Channel-Lock brand... Good for snugging up threaded rigid conduit or rain-tight fittings on EMT. Plus they seem to be about half the weight of Channel-Locks... which makes a difference if you carry them in a tool belt or in your back pocket.
They're German made. I prefer American made, but the Germans make good stuff. They're expensive but still reasonable.
Mike