Kangaroo Strop for Edge Pro 2"x6" is an ULTRAFINE surface. Smoother than a baby's butt. It takes compounds extremely well and is EXTREMELY thin, minimizing inadvertent edge convexing. It's also an extremely strong leather. In particular, I find that 'roo works exceptionally well with grits 0.125 micron and below because it doesn't provide much, if any, abrasion on its own, letting the compounds 'shine through.' It should work well enough on some of the coarser compounds, but I find balsa more than adequate for those too. It also has a nice consistent draw.
The 2"x6" strop is mounted on Aluminum blanks. I'm extremely pleased with how these came out. I've selected extra thin Kangaroo leather specifically because it is so thin that the amount of 'give' is minimized. Smooth? You bet! Some of the smoothest leather I have ever felt. I'm considering it an ultimate strop, especially well suited for ultrafine compounds below one micron going all the way down to my finest compounds (0.025 microns - ten times finer than quarter micron). In the extreme, it can also be used without compound and has the 'draw' associated with leather. Pictures can't truly capture the smoothness, which must be touched to truly believe just how fine it is.
The Kangaroo strops are worth every penny. They are a high quality stropping substrate. The stiction produced when used with the edge pro produces a heavy burnishing effect in conjunction with the effect of the stropping compound you are using. The 2x6 size provides a larger working area allowing you to accomplish more per stroke.
This finely grained leather is stretched tautly across the aluminum backing. This produces a strop with very little give,greatly reducing the risk of rounding off your edge.
I use mine with CBN,these make a great finishing step for all knives.