sturdy magnets but a little clumsy
The magnets are good and they will hold a piece well, but handle that tightens the two sides is plastic and I already broke mine. it still works but I don't use it unless I have a very straight forward 90 degree angle to hold the size and weight of the things makes it not very useful for tight or complicated spots.
Prosgood magnets, good for simple things.
Consplastic parts, very heavy, a bit clumsy.