This may be old hat, but it's the first time I've seen Pentax-branded inkjet printing paper in this remote Southerly corner of civilisation.
https://www.pentaxforums.com/forums/attachments/32-digital-processing-software-printing/205462d1391641395-pentax-branded-printing-paper-pentax-paper.jpg
Now, I presume it's someone else's paper, re-packaged and re-branded, but the questions are: how long have they been selling this, and how good is it? At the price offered, they're probably shifting old stock (but that goes for the Ilford Gallerie paper, as well, so in itself it isn't a statement about quality - probably more about people not printing as much, these days) and I guess I'll answer the last question for myself soon enough, as I bought a pack to try (along with one of the more-familiar Ilford product).
You'll note the strap-line is "Pentax Make No Mistake". Make of that what you will, and add appropriate punctuation as required.