These wire ferrules are an excellent way to dress up your amplifiers install. These are for amps where fork terminals will not fit properly. 

*This product does NOT fit my #FAM branded 4AWG cable due to the oversized insulation. I do have other ferrules that work perfectly on that cable, but these ones do not. 

These, however, should work just fine on all standard 4G wire from other brands.

I sell these in pairs. These Install Bay brand ferrules for 4g wire come in colors red and black.
You may choose Red/Black for one red and one black.
Or black/black for both ferrules in black color,
or red/red for both ferrules in red color.