Rockford Fosgate Rfk4x 4 Gauge Amplifier Install Kit Made of 100 percent Pure Crystal-oxygen Free Copper
The kit is very complete. Is more than enough for amplifier of 2000 Watts. The cooper is thin and the insulator is made of great material. High quality!. The 100 Amps fuse receipt have one problem, is not possible to adjust the fuse once it is in possition. It may cause sparks by bad contact between the terminals and the fuse. But it isnot a big deal.