Banana Plug Hand Held Voltage 33VAC/70VDC Hands Free Voltage 5000VAC Max Amps - Test Lead Connector 15 Body Material - Test Lead Connector Brass Contact Finish - Test Lead Connector Nickel Plated Contact Material - Test Lead Connector Beryllium Copper Insulating Material - Test Lead Connector Polycarbonate Color - Test Lead Connector Black Wire Size 18 to 22 AWG Operating Temp Up to 302 Degrees F Spring Material Beryllium Copper