Features:3-Pc Pliers Set includes: 7", 10", and 12" Cobra® pliers.Box joint construction.Press button action for fast and firm adjustment directly on the work piece.Single hand adjustment.Self-gripping on pipes and nuts.Polished head, plastic coated handles.Ergonomic design - power with comfort.Hardness of gripping teeth is 60HRC approx.Material: Chrome vanadium steel, oil hardened.