5 Pack Irwin 18 Vise-Grip 6SP 6" Locking "C" Clamps with Swivel Pads Wide-opening jaws provide greater versatility in clamping a variety of shapes Swivel pads hold tapered, awkward, and delicate projects without damaging the work surface Turn screw to adjust pressure and fit work. Stays adjusted for repetitive use Constructed of high-grade heat-treated alloy steel for maximum toughness and durability Guarded release trigger quickly unlocks and protects from accidental release