As of now, we no longer use the plastic clamps. We have re-engineered our clamping system! Our upgraded Universal Clamp mounting hardware kit for GenTent Safety Canopies attaches to open frame generators with round tubular or square vertical frame posts. This mounting hardware kit can also accommodate generators with low lying or difficult panels, as well as muffler heat shields that would otherwise block the clamps from directly connecting to your generator. Made with steel jaws, FR EPDM non-marring teeth, and aluminum telescoping tubes, the new GenTent mounting system is the strongest attachment method we have offered yet.