The Benchvise kit is the original Grip-All Jaws product that started it all. It comes with a vise adapter block, the pivot arms and pivot washers, four regular pins (shown here) and four 3/8" tall pins.
You also get the mounting hardware to mount the adapter block on your bench vise's movable jaw. The block comes in 7", 9", and 10" widths to fit nearly any bench vise. However, if you have a unique situation, let us know about it via the contact page and we can most likely make an adapter for your vise.
Due to the fact that vise designs differ widely, the adapter block is not drilled for mounting. You will have to do that and you may have to drill the mounting holes in the vise jaw. but it's pretty easy and explained in the video.