Pião Chair at Casa Cor: how much does it cost? where is it sold? how to use it?

We tested the Pião chair (Spun Chair) at Casa Cor, in the Brastemp Gourmet Lounge (project by architects Rodrigo Costa and Alessandra Marques). And we have all the information about this playful armchair. The images are graphic! Don't do this at Casa Cor - the security guards won't let you...