Ergonomic Design: The comfortable office chair is ergonomically designed and padded with high-density sponge to fit your body curve and give you a comfortable sitting feeling. Adjustable for Different Use: To fit your body size and to meet your different needs, this executive office chair has a seat height (19.25"-22.5") and tilt degree (90°-150°) that can be adjusted by a pneumatic lever. Strong Support: With headrest and lumbar pillow, the high back office chair provides you strong support for long-time sitting and working. The armrest and the footrest gives an extra place for your limbs when you want to rest. 360° Swivel Base: This chair for desk is equipped with 360° rotatable seat and five castor wheels for you to move around without getting up. Reclining Office Chair Dimensions: Overall Dimension: 26" W x 27.25" D x 45.25" - 48.5" H. Weight Capacity: 330 lbs. No additional installation tools required.