Package included: all is included in the first picture.Material: Silver Copper.Rated currents (Amps): 120 A.Rated Voltage Rating: 600 V.Contact Barrel Wire Size [AWG]: 2/4 / 6AWG (1 3.3 mm² - 21.1 / 33.6mm²). Medium contact resistance (micro ohm): 140.Isolation resistant to test voltage (AC / DC Volts): 2200V. Contact retention force ( lbf): 100lbf | No load (contact / disconnect cycles): At 10,000.Under load (Hot Plug 250 cycles @ 120V) .Minimum insertion force (pounds): 20lbf.Operating temperature ° C: -20 ° to 105 °. Flammability class of the housing material: UL 94-V0.Good material: the product is made from good materials, the continuity is perfect, the resistance to bad environment. | Auto-erasure makes the surface of the push needle clean, the low contact resistance is reliable. The connector can be used in a strong shock environment and with the fast action function in a large electric current. | Stainless steel shrapnel can ensure constant contact stress and overcomes intermittent overload in case of frequent splicing and interruption. | Easy to use: Regardless of the plug or plug, inserting into the same color is a pair, easy and quick to splice and interrupt.