You’ll receive the exact stone pictured; making stones in this way is very hard work and at most I could manage one or two in a week, drawing from perfectly-rectangular stock which took us nearly nine months of waiting to acquire, so it is a rare modification on top of an already rare thing. Nobody wants to do that labor, but everybody wants the finished product, if it were the same price as w/o the labor baked in. Someone has to go dig the ditch to half ’round the Earth.
By honing on this over several shaves/honing sessions, your razor will become thinner/more flexible, and you will note this in shaving, and perhaps even dare to take the slings and arrows from the real experts on the shaving forums were you to tell anyone of it. Will you be the one guy who dares to proudly state this on any shaving forum, YouTube comment section, etc., because of a sense of fairness? If you do, be prepared to be attacked!
If you are in the USA or have a USA shipping address, you can buy this rock alone, or together with the shaping plate in one purchase, and you can use the shaping plate to painstakingly refresh your Arkansas stone’s surface when your use begins to vary its surface texture homogeneity. I’d recommend a fairly coarse paper between 80-120 grit, preferably silicon carbide based, and just rub the stone in figure-8s and back-and-forths and side-to-sides on that paper while you feel for surface variances and keep your stone’s 6″ length aligned to the 11″ length of the surfacing plate. Alternatively to buying a costly resurfacing tool, you can wrap sandpaper around your stone and use that to rub on a little second stone, to produce an ‘anti-shape’ rubbing stone, which is what they’ve done in Germany and France with their convex hones for decades (they don’t even have a special shaping plate, they make their stones by hand like a sculptor).
However, the real reason to buy that surface plate is to get the huge advantage of a different step, namely adding a bevel-thinning-specific hone to your honing regimen, which this Arkansas stone on-offer (shaped to a long-diameter ellipse of approximately 25′ effective diameter by 6.5′ going across the stone) is not designed to do. You can certainly thin a portion of the bevel with this stone quite well, but only the very tip of the bevel, and while I am certain you can tell a subtle difference in an edge (bevel) from this and an edge made as an isosceles triangle, you will tell a dramatic, enormous difference if you add a substantial amount of spine-side bevel thinning to your razor honing. Just get a 1000 grit waterstone or similar, shape that stone toward the 9″ axis of the shaping plate so that it becomes a short-primary-diameter form, hone upon that until you see its marks overtaking your bevel’s scratches (it will start at the side of your bevel toward the spine, you don’t have to wait for it to completely overtake your whole bevel, just let it get close and then switch to a specialist like this), and then use this tool for the final tweaking and you’ll be using an astoundingly-thinner piece of steel on your face.
I am not saying that this kind of cutting edge is “better”, because I leave such language to the customers to state; I am saying that honing on wheels makes an edge which is mathematically thinner and more flexible, those are facts, and I do believe that 1) most (but not all) users prefer a thinly ground razor [that’s why ‘EXTRA HOLLOW GROUND’ took over the on-the-razor marketing from so many producers in the late Victorian Era], 2) most (but not all) users prefer a more flexible razor to a less flexible razor, 3) most (but not all) users prefer a more acutely-angled cutting edge to a more obtusely-angled cutting edge if no other factors of that edge were varied, and 4) this tool produces a thinner, more flexible, and more acutely angled cutting edge than honing with a flat field abrasive.
You likely did not know this [b/c the exact opposite is confidently & heavy-handedly espoused on every str8rzr-centric internet forum], but str8rzrs’ bevels are supposed to be concave for best performance and longevity according to certain professional parties involved in their sharpening. Don’t believe it? [email protected]@k at the pictures here taken from the 1934 book from the world’s largest abrasives manufacturer who supplied the best vintage razor factories their sharpening wheels… Could it be possible the world’s largest abrasives manufacturer and supplier of the tools used by the vintage Victorian Era razor factories might know something the self-appointed and self-taught shaving forum experts do not? Read the gobs of screenshots of customers’ praise all from here in 2021 when I began seriously shaping the shop’s stones to be smaller wheels upon the honing SKU and decide for yourself if it makes any sense that so many people would go out of their way to contact us (all unsolicited, we never contact you unless you contact us first!) versus the assuredly-small volume we move of product.