It is an dramatic act by circus performers to balance on top of a board which is in turn on top of a roller or ball, and some performers stack up several shelves on the roller.
It is a Russian folk "dance" of a single-person dancing with two suits of clothing to mimic two persons wrestling or dancing.
The Infinite Fantasy Circus Family
This Toronto-based circus has performed at many festivals, public events and private meetings in Ontario, Canada,since 2000s;
their specialties include rolla bolla, fire eating, hula hoops, contortions, silk aerial, acrobatics, Nanaika dance, and ....
The Belarusian-Canadian family consists of six members: Leonid, Tatyana, Helen, Katherine, Valerie, and Max.