This ergonomic gaming chair features thick high-density sponge padding and PU leather for ultra comfort and long service life. Equipped with adjustable 3D armrests, 360° swivel design and smooth silent casters, it supports height adjustment and 90°-155° reclining with rocking function. Built-in adjustable lumbar support and detachable headrest perfectly fit your body curve, effectively relieving sitting fatigue. Built with sturdy reinforced metal frame and stable gas lift, it holds heavy weight steadily. Comes with footrest for full relaxation, easy to assemble with complete tools and clear instructions, ideal for gaming, working and long-hour sitting use.