The Easy-Twist WWC-R-SJ 100-Count Small Jar Of Red Winged Wire Connectors Are Designed For Use On Copper Wires In The 22-6 Awg Size Range. They’Re Made Of Flame-Retardant Thermoplastic Rated For A Maximum Temperature Of 105ˊ Celsius (221ˊ Fahrenheit). The Quick-Grip Square Spring Design Grips In Fewer Twists and Can Dead-End A Single Wire, While The Ergonomic Swept-Back Wing Design and Ribbed Texture Makes Them Easy to Twist. Their Compact Design Is Useful For Applications In Tight Areas or Anywhere El