Amazon.com: Varier Variable Balans Original Kneeling Chair Designed by Peter Opsvik (Black Revive Fabric with Natural Ash Base) : Home & Kitchen

The Thatsit has adjustable kneepad and a backrest, making it our most comfortable chair yet. It is lightweight and can easily be moved around. Variable is intended for use with standard height desks Its curved runners allow for gentle rocking motions, making it more ergonomic and comfortable than traditional office chairs Now includes FREE soft tape ($50 value) for floor protection! Avoid scratches on hard floors 10-year Limited Warranty