Works sorta. Cheap.
Crutchfield Customer Review (What's this?)
I wish I had sucked it up and gone to a hardware store to spend money on a real pair of wire strippers. A bit more money but then at least I'd have a quality tool in my toolbox for a lifetime. These barely work. I ended up doing most of the wire stripping on my speaker install with a utility knife because it was easier than using these.
Cons: Bad handle - it's just a flat piece of metal with a dip on the handle. This combined with a stiff hinge that sticks makes it so you really have to give it some muscle to work. The cutters and strip notches were also quite dull. These are more of a toy than a tool.