Box joint construction a new generation of Water Pump Pliers for easier & more secure working Press button action for fast & firm adjustment directly on the workpiece selected Jaw opening is positively ensured, slim jaw profile allows for access in tight places Single-hand adjustment self-gripping on pipes and nuts. The guard prevents operators fingers getting pinched Material: chrome vanadium electric steel, oil-hardenedIncludes a 7″ 10″ and 12″ cobra plier with self grip jaws