The Original Locking C-Clamps with Regular TipsWide-opening jaws provide greater versatility in clamping a variety of shapesTurn screw to adjust pressure and fit work. Stays adjusted for repetitive useConstructed of high-grade heat-treated alloy steel for maximum toughness and durabilityGuarded release trigger quickly unlocks and protects from accidental releaseVG11R-Locking C-Clamp. 11" clamp with easy release trigger & micro adjustment screw mechanism. Locking capacity up to 4" with squeeze of one hand. Made in USA. Otherwise known as "oddballs, cowboys, c grips, pair of elevens, etc"