Review on Wideskall Nylon Plastic Spring Clamps by Trae Joubert

They did NOT open 1.5 inches as advertised. They didn't fit a 2x4 exactly 1.5 inches thick. The actual maximum opening is about 1.25 inches, which may not be a problem for some buyers, but for me it was a waste of time and money as they didn't work for my application. They also seem pretty cheap but I can't use them so I can't test their durability.