This is the Phoenix Gold ZRK20 4 Gauge Oxygen Free Copper (OFC) Amplifier Wiring Kit

Phoenix Gold now releases its own cable kits, the ZRK series. The ZRK series includes OFC (Oxygen Free Copper) cable. Paired with a twisted pair RCA cable, this kit will be a perfect complement to your Phoenix Gold power amplifiers or any power amplifier for that matter.

This kit includes: 

1 x 5.2m 20mm2 100% Copper Red Power Wire
1 x 0.8m 20mm2 100% Copper Black Ground Wire
1 x 5.2m Twisted RCA Cable
1 x 1.8m Split Loom Tubing
1 x Fuse Holder and Fuse