Product kit :(3Types Gauge Heat Shrink Wire Connectors AWG 4/6/8) 44pcs Butt Connector + 44pcs Heat Shrink(Black&Red).
Strong Crimps: Thick copper barrel ensures strong secure crimping every time, seamless butt connector barrels ensure super strong crimps, and prevent your wire from slipping out.
Excellent Conductivity: Pure copper ensures the highest conductivity. A thin layer of tin will protect your butt splices from corrosion.
Heat Shrink Tubing:Black&Red classify easily. just control the temperature via a heat gun. shrinkage ratio: 2:1, and makes a tight seal. Our wire shrink wrap tubing has good electrical insulation, corrosion resistance and high temperature resistance.