About this item Ergonomic Office Chair: Engineered for all-day comfort and rock-solid support, our executive office chair features a reinforced frame and a heavy-duty, 4-level gas lift. Independently tested to withstand 1.5 times the BIFMA standard, it delivers unwavering, shake-free stability with zero gradual sink—so you can tilt, recline, and power through your work with total confidence Smooth 360° Swivel & Adjustable Tilt: Work, relax, or refocus—all without leaving your seat. This ergonomic office chair is built with a 360-degree swivel base and a smooth rocking function. Pull the lock lever for a gentle, secure tilt, or use the adjustable tension knob to customize your rocking resistance exactly how you like it Premium PU Leather: Wrapped in smooth, high-quality PU leather, this desk chair is soft, breathable, and super easy to clean—just wipe it down in seconds. The mid-century modern style instantly elevates the look of your home office, study, or meeting room Ergonomic Lumbar Support: The contoured backrest provides steady lower back support to promote healthy posture and reduce strain, even during long hours of sitting Quick & Easy Adjustments: Use the one-touch pneumatic lever to smoothly adjust the seat height to match your desk or preference in just seconds