After googling, it turns out that it is Lansky's "Medium" grit. Which is 280 US Grit, about 350 on our Japanese stones. That's pretty freaking agressive. I'd go with something finer. There is a Smith's ceramic that is 800 US grit(about 1200 Japanese) for a similar price:
I'd go with the smith's one. Some places are selling that one for about 5 bucks more than Amazon.