High quality. Made of pure copper wire, good conductivity. Wire length 4FT. Fit to most Car Truck Vehicles SUV like GM Ford Jeep Toyota Kia or other vehicles that with OEM Fakra Z antenna adapter. Easy installation. Directly plug and play, without any modification or Splicing. It hook the FAKRA connector at the end of your factory antenna cable to an SMB plug that connects to your SXV100, SXV200,SXV20V1, SXV300, SXV300V1 and other SIRIUS XM receiver tuner with SMB connector. If you are installing an aftermarket stereo with SIRIUS XM and have a factory installed "Shark Fin" or other Factory Sat antenna that you want to use, this is the adapter for you. It allows you to connect your SiriusXM satellite radio tuner to your vehicle's original satellite radio antenna, and will save much of time not having to run the antenna cable from inside under the dash to outside the car.