FeaturesYellow vinyl-insulated, butted-seam barrel ensures a secure fit and offers reliable performanceFunnel-designed, seamless brass sleeve offers easy insertion of wiresProvides quick connection for set screws or clamps that are used to make electrical contactMade of electrolytic copper for good conductivity and has tin plating for corrosion resistance600 V rated for building wire and 1000 V for signs, fixtures or luminairesVinyl insulation