if you have heavy material don't purchase this it's supposed to be good for 3/4 in wood . but it stretch it to it's limits harder to keep the sides even. wast to push More to one side. also if you don't have big hands or much strength it will take both hands to squeeze the spring to put the board on. which makes it more work.
But if you have thinner wood and bigger hands it will be perfect

They are of good size, they fulfill their function of holding in simple jobs. Very good tools

nice and easy to use, will be super handy, husband loves them, works as expected

4pc Woodworking Corner Clamp Set – Precision 90-Degree Angle Gripper – Adjustable Woodworking Tool for Crafting and DIY Projects