Gardner Bender CK-570 Assorted Wire Connectors Kit, 22-6 AWG, Twist-On and Screw-On, Electrical Wire Nut, 570 piece kit RATED: 600V max in building wire and at 1000V max in lighting, fixtures/luminaries and signs FLAME RETARDANT: polyolefin construction resists common fluids and solvents KIT CONTAINS: 101 (22-14) AWG Grey Wire Connectors; 101 (22-14) AWG Orange Wire Connectors; 101 (22-10) AWG Yellow Wire Connectors; 25 (22-10) AWG Red Wire Connectors; 101 (22-14) AWG Blue Wire Connectors; 10 (18-8) AWG Grey Wing-Style Wire Connectors; 25 (22-10) AWG Red Wing-Style Wire Connectors; 10 (14-6) AWG Blue Wing-Style Wire Connectors; 101 (18-10) AWG Yellow Wing-Style Wire Connectors COPPER TO COPPER connections only STANDARD RATING: 600V max in building wire and at 1000V max in lighting, fixtures/luminaries and signs UL LISTED: Canadian and U.S. requirements 0