Designed to promote healthy posture, the Ergo Tall Stool has a comfortable curved seat that offers lumbar support and adjustable height. The ergonomic design works well in various areas, while the durable frame is sturdy enough for heavy use. A gas-lift mechanism lets you adjust height effortlessly, so your knees are naturally bent at 90 degrees when you are sitting. The chrome foot ring provides a comfortable place for your feet to rest while in a higher position.