With a rotating convex base Jari forms one leg of a stable tripod, your own legs provide the other two parts.
That means you are constantly flexing, adjusting and moving; the ideal way to stay focussed and concentrate.
But the coolest thing about Jari Activstool is that it is gas height adjustable
It has huge range of students and just about any application: Classrooms, Libraries, Study groups, Open spaces, Collaborative learning, Behind a desk or on its own