Closed-End Crimp Connector, Color Clear, Insulation Material Nylon, Maximum Operating Temperature 221 Degrees F, Maximum Voltage 600 V, Minimum Wire Combination (2) 22 AWG, Maximum Wire Combination 16 AWG, Contact Material Copper, RoHS Compliant Yes, Standards CSA Certified, UL Listed, Compatible Installation Tool Model Number TH-440, TH-450, For Wire Type Copper Wire, Maximum Wire Size 16 AWG, Minimum Operating Temperature -40 Degrees F, Minimum Wire Size 22 AWG, Overall Length 0.83 in