Intersystem grounding bridge, has 4 termination points, one more than required by the NEC. Cable range 4 termination points for #4 to #14 solid or stranded. Attaches to grounding conductor with lay in style lug with a cable range of #6 to #2 grounding wire solid or stranded. Zinc with grey Cover. Comes with PVC adapter for 1/2" PVC pipe.