Ergonomic Comfort for Long Time Sitting: An ergonomically 3 stages backrest provides excellent support to neck, back and rumpbone individually. Double layered cushion gives extraordinary soft sitting feeling and meanwhile, greatly improves the support for whole body Ergonomic Comfort for Long Time Sitting: An ergonomically 3 stages backrest provides excellent support to upper back, lower back, and lumbar individually. Double layered cushion gives extraordinary soft sitting feeling and meanwhile, greatly improves the support for whole body User Friendly Premium Leather: The soft and skin-friendly premium bonded leather is resistant to stains, scratches, peeling, and cracking for a long time. It is also easy to clean Multiple Adjustable Functionality Suitable for Various Using Scenarios: You can lock the backrest at 90° for upright work or unlock it to enjoy a smooth rocking motion from 90° to 115°, with an adjustable tension knob to customize the rocking resistance to your preference. Height and 360° rotation can also be easily adjusted to suit your needs BIFMA Certified Safety and Durability: Every component, including the backrest, cushion, gas lift, metal base, and dual casters, is BIFMA certified
