UPLIFT Motion Stool
The UPLIFT Motion Stool's weighted convex base enables you to move freely at your standing desk while sitting or perching. The weighted base keeps the stool upright when not in use. A treaded rubber covering on the weighted base maximizes friction with the floor. You can perch sit with the stool tilted forward or rock back and forth for active sitting. This stool allows motion in every direction. That’s why we call it UPLIFT Motion!
The soft foam padded seat cushion's waterfall edge reduces pressure points and allows maximum flexibility, while the fabric seat provides maximum breathability. This isn’t a hot seat after all, it’s made for comfort. Keeps you dry; it’s no sweat!
More information: http://www.thehumansolution.com/uplift-motion-stool.html