The items included are as follows. 1 x Male and Female T Plug. 1 x 20cm Heatshrink 5mm Diameter Red 2 to 1 ratio. 1 x 20cm Heatshrink 5mm Diameter Black 2 to 1 ratio. 1 x 50cm 12AWG Wire Red. 1 x 50cm 12AWG Wire Black. Specifications for 12AWG wire are as follows. Single wire diameter 0.08mm. Core wire count 680. Wire diameter 2.48mm. Insulator thickness 1mm. Finished diameter insulator and wire 4.5mm. Conductor resistance ohm or km 9.8. Acceptable current 88.4 amps. T Plug has a continous current of 45 amps.