Boy, we wish we had our very own Brian Ashcraft from Kotaku right now to decipher all the Japanese on this page. Nevertheless, with our high tech Rosetta Stone we can see that this nifty bath salt replacement comes in six different colors (red blue green pink yellow purple).
Each one of these only costs $2.80, so collect all six and use them every day, like the site says. Unlike bath salts, these don't melt (we think), so you can keep on enjoying them when you clean yourself daily. You do wash daily, right?
Update: We weren't clear on this, but these aren't actually bath salts. They are little atmospheric lighting balls that have a soothing effect similar to bath salts. Gomennasai.
Light/write "bus pallet" [Banpresto]