[Ronja] comlete of a ronja instalation is 100$ or 2x100$ ?

[Pawel Plociennik]

Hi everybody *hardware* hackers,

I have read a http://ronja.twibright.com/about.php and 
I do not know that 100$ material cost is *only* one 
ronja or it is a complete of a two ronjas.

can somebody explained me that ;)

ps: sorry for my English but it is not a my native 
language ;(

thanks,
Pawel Plociennik
Poland