Wooden Japanese Sandal

I found these in my closet at the hotel I'm at right now. It is the Savali Hotel in Padang, Sumatra - Indonesia.

The note says that it is there for convenience and health. I don't think they will be convenient on my feet, but still....I tried them on :)

And after feeling that I don't think they will be healthy on my feet :)

Have never seen these sandals before in hotel rooms. The note says that you can buy them for RP 500.000,00. So that would be €32 or $44.
So if anybody wants a pair ;) You now know where to get them...