Features and Benefits: Vinyl Insulated Terminals have been PVC injection molded with funnel entry for fast, easy wire insertion; Terminals have "V" groove serrations to provide maximum contact and tensile strength after crimping; JT&T's terminals are constructed from pure copper (Alloy 110), annealed & electro tin plated; Insulator sleeve is color-coded for wire size and identification; In a re-closable package;