Leitz Ergo Active stool with comfort seat. Stylish and active office stool with a unique comfort seat in a triangular shape with a firm, ergonomic support core to distribute weight evenly across the pelvis, surrounded by soft foam padding to reduce pressure on the thighs and legs. The 9 cm thick seat can be used for leaning or sitting to encourage a more upright sitting posture and has an extremely comfortable sitting experience similar to a seat cushion. The rounded base encourages rocking, bobbing and twisting movements to strengthen the back and core when working at a desk. Easily and smoothly height-adjustable from 47 to 64 cm by pressing the button underneath the seat. Rounded base with non-slip rubber pad to prevent the stool from slipping and to protect the floor.