Color-coded bright green to indicate grounding. Specifically designed to make positive ground connections and bond nonmetallic sheathed cable. Live action square wire spring automatically adjusts to wire shape and size while twisting wires together. Hole at top of wing nut for grounding wires from system to ground terminal and box. Pressure-type screw-on connector for use with 1 No. 10 with 1 or 2 No. 12 1 No. 10 with 1 to 3 No. 14 1 or 2 No. 12 with 1 to 3 No. 14 3 No. 12 with 1 No. 14 2 to 4 No. 12 2 to 2 No. 14. WARNING: This product can expose you to chemicals including DEHP which is known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov -