These clamps allow you to use the right amount of pressure without putting too much stress on the plastic. They are made in the USA which is a plus. I have found myself using these clamps a lot.

I bought a 1/16 Corvette kit and the only flaw in the kit was that the crossbar was broken. I never would have gotten it glued together properly without these clamps. The crossbar is delicate and thanks to where the break occurred it couldn't hold much weight. The clamps are the perfect size and light enough to hold the crossbar without putting undue stress on the part being glued. They held tight without slipping. I removed the clamp a few hours late and the piece was solidly glued in place and had not slipped.

personally, I don't like how these clamp they are cheap enough. I do not like these clamps