I'm not gonna make a call on this one for sure without talking to both vendors first (which I don't care enough to do). With that being said they look similar if not the same. EXCEPT that all the stones at rasurpur besides the 10k are shown with bases that the other site said Naniwa stopped doing. Also, rasurpur talks all about how they need no water... I found this at the other place " It is very important that the stones be soaked for 15 minutes before use, and after use, be kept away from heat and sunlight so that they dry evenly."

So one of them is wrong! I'm guessing it's rasurpur- it comes with a Nagura. Who on earth would use a Nagura without water? Or maybe I'm just uninformed here lol.