Hello, I have seen the performer Luis de Matos doing the snowstorm in China with a big black fan, not the small ones of Michael P. Lair.

I would like to know where can I get such fans.

Many Thanks!

Being in Portugal, I would try the flamenco supply shops. Dancers in Spain use extra large fans, and you are not too far away!
Try searching on the net for supplies close to you.

Try this address for starters:
http://www.boutique-flamenco.com/pericon.htm

Contact Jeff McBride. I think he sells them. Also check martial arts supply emporiums, they have metal ones but also the larger bamboo ones.