CQ-18 gauge 450 ohm ladder line has a tough polyethylene outer cover and 19 strands of copper coated steel conductors. This is a medium sized 450-ohm transmission line used on many G5RV antennas today....rated at 1,000W power. Sells for $0.36 per foot, or $31.00 per 100' or more. Call for quantities in excess of 499' or more.