CRL Cobra Adjustable Pliers do the work of four tools: locking pliers, pipe wrenches, pump pliers and adjustable wrenches. It operates with one handed, downward pressure, without squeezing, to minimize fatigue. The patented parallel jaw design allows an accurate, almost infinitely variable adjustment of the jaw opening, insuring non-slip grip on round, hexagonal and square work pieces. New push button adjustment and locking mechanism has an effortless push button that holds set position until released or readjusted. Safety stop prevents hands from being pinched. Coated handles for soft sure grip. The Cobra Pliers have so many positive features, you'll come to rely on it as one of your favorite tools.