6 pcs 2 Gauge Wire Ferrule for car Amplifier Power Ground cables  size 2 AWG 

1. Just strip your cable
2. slide on the Ferrule
3. insert into amplifier and tighten set screw ( not overly tight )
4. No crimpers needed ( you can if you wish )
5. The amp set screw will compress and make a dimple into the ferrule that is easy to put in the same spot when you remove and put back in.
6. No more messy wire strands! A must have for a clean install!