At the core of the idea is the concept of wellness. Webble bases much of its inspiration from decades of research into the physiological benefits of increased leg activity while seated. I work hours on end seated, sometimes without moving my legs. The Webble strangly encourages me to constantly shift them around. To clarify, we're not talking about restless leg syndrome nor is this a treatment for it. This is about giving your legs something to do. The Webble sits on four wheels allowing smooth movement from almost any direction, given the limitations of the human hip. There are also springs inside to let your feet bounce up and down. The cushion is made of a dense foam or cellulose material, covered in mesh netting.