Product Description Gardner Bender™ wire connectors are engineered to exceed the expectations of professional electricians. Perfect for commercial or residential applications GB Wire Connectors offer world-class quality, performance, and application versatility. Our connectors provide maximum application flexibility by offering contractors and do it yourself-ers varied packaging options, ergonomic designs and wire ranges. Forward thinking design concepts ensure product usefulness for generations to come. From the Manufacturer The Gardner Bender Blue WingGard Color-Coded Screw-On Wire Connector makes quick, secure connections with its easy-on wing-type design that provides positive continuity between conductors. The expandable square wire spring creates a strong vibration-resistant connection. The tough, thermoplastic shell shields against environmental extremes, and the high dielectric shell features a deep skirt design to prevent exposure of bare wire while providing superior flash-over protection. The Blue WingGard connector is applicable to wires #14 to #6 AWG with a minimum combination of one #10 with one #12 and a maximum combination of one #6 STR with two #8 STR.