Look like half-baked Shapton Glass Stones.
(But it looks like these ones might be predominantly SiC at the lower end of the scale. If done right, good! If done wrong, disaster! Just try a GS #120 to see 'wrong'...)
I'm sure they're nice, and I'm sure they work but they cost a heap but if I was going to copy sharpening stones and stick my name on them, I'd avoid making them look anything like Glass Stones.
Then again, I'd rather have my left ankle nailed to my forehead with a railway spike than willingly use Glass Stones, so that might taint my opinion...
Even so, they look like they're costing about the same as comparable stones of normal composition, that are well known and have a well respected pedigree.
Like I said, they probably work ok (if you're into sharpening on abrasive filled plastic) but they're not going to be bringing anything new, special or wonderful to the table no matter who's name is on them.
No thanks.
Stu.