As some have said, it's a sculpting wax, which means you use heated tools, or a wax pen, to work with it. Once cool it is very hard and can therefore hold the smallest of detail. Adam Beene is one of the best in the biz, and this is a formula he developed. I know I'm eager to try it, as the casteline I normally use hasn't been formulated quite right in over 5 years. His latest blog entry at the end of Nov. mentions the release date is near.
This material sounds very interesting indeed and might be worth experimenting with, even if it is a bit pricey. Mr. Beane is immensely skilled...beyond amazing really; this kind of sculpting talent is what most of us can only aspire to!