Review on 💪 Super Heavy Industrial Power & Hand Tools - Spring Clamp Large: Ultimate Strength and Versatility by Shawn Reiter

These are high tension, universal, detachable clamps. You may need both hands to fully open your jaws. The main downside is the false claim that they have a 3" bore. They only open 2.5 inches. If that's enough for you, then they're a good deal. Revain and the manufacturer should correct the description. Two stars for lying.