Full Technical Description: Knurled Type; Yellow Color; (1) #14, (1) #18 min. Wire Combination Size; (4) #14 Max. Wire Combination Size; 18 to 10 AWG Wire Size; UL, CSA Approval; 300 V; 600 V Building Wire; 1000 V (Fixture, Sign) Voltage Rating; 221 Deg F Temperature Rating; 500 Per Keg Standard Package; Copper Wire Type; Live Action Spring Type; PNYK Model