Jacky visits Kamen Rider The Diner @ Ikebukuro!

[Synch]

[HIDE]

King Stone! it changes between red, green and blue. it stops glowing when there's no more water.[/HIDE]
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lol how does that work :laugh:

 

[Jacky392000]

I already wrote "it stops glowing when there's no more water" under the pic so it's basically a LED light powered with a water battery.