2 stroke kits come either with the cable pre installed to the carb or with just the parts that you have to assemble yourself.
You get the throttle as pictured by SBP and a good quality cable which has an end just like the ones that come with the 2 stroke kits.
So it works with 2 stroke and 4 stroke carburetors.
One of my pet peeves is sellers that Do Not have a photo of exactly what you will get in the box.