Vise Grip Locking C-Clamps is powerful locking mechanism. It has jaws open wide is used to provide greater versatility in clamping a wide variety of shapes. Adjusting screw is used for exacting pressure. It protective swivel pads prevent damage to soft materials. Wide-opening jaws provide greater versatility in clamping a variety of shapes. It turns screw to adjust pressure and fit work. It is constructed of high-grade heat-treated alloy steel for maximum toughness and durability. It provides guarded release trigger quickly unlocks and protects from accidental release.