King Innovation 67095 Contactors' Choice Red Wing, Pack of 100 Designed for conventional copper/copper dry splices, available in nut, wing and push-in style Perfect for indoor, dry applicatoins for both commercial and residential installations Tough thermoplastic or polycarbonate (PC) flame retardant shell Rated between 300V and 600V. Industry color-coded. No pre-twisting required Max. Voltage: 300V or 600V. Wire Range: Min #18/Max #8