You will feel like the CEO in this fabulous, executive chair. This chair has everything! It swivels in a complete 360 degree circle. It is equipped with a pneumatic gas lift, so you can raise and lower the chair with a simple pull of a lever. It tilts back, but also has a tilt lock, so you can keep the chair upright if you like. It also has a tilt tension control, so you can make the tilt as stiff or flexible as you like. The chair is mounted on a "5 star" set of rolling casters. The heavy-duty double wheels are extra sturdy, and hooded for your safety. Some assembly is required. In addition to a great range of adjustment, this chair was ergonomically crafted to keep you comfortable in an office setting. The chair features extra padding in the seat to support the weight of your thighs. Seating is constructed of duraskin PVC for extra strength to resist tears if you back up into a cabinet or corner. The molded armrests are specifically angled to allow the most comfortable position when typing at a computer -- very few office chairs feature these angled armrests.