HIGH QUALITY 2 Conductor Speaker Wire Flexible Clear PVC Jacket with Red Stripe Polarity Allows for Fast, Easy and Accurate Installations12 AWG, 65 Strands of Pure Copper Wire per Channel Providing Clearity and Undistorted Signals to all Sounds System 99.99 % Oxygen Free Copper (OFC) Conductors. Compatible with Bare Wire Connectors, Banana Plugs, Spade Tips or Bent Pin ConnectorsUL Safety Certified, NEC 725 Class 2 Rated for Home and Commercial UseSequentially Marked Every Two Feet in Descending Order From the Start of the Reel to the Core