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. Connectors provide maximum application flexibility by offering contractors and do it yourselfers myriad options, ergonomic designs and wire ranges. Crimp sleeveConnector produces strong permanent connections for traditional splicesPressure-type, used in branch circuit and fixture wiringOpen end constructionRecommended for use in applications where substantial vibration occursCopper-to-copper applications18 to 10 wire rangeTwo No. 16 minimum wire and two No. 10 with one No. 12 maximum wire18 per card