Ergonomic Human-Curve Backrest and Headrest: Designed with a human-curve backrest and headrest to provide comprehensive spinal support, alleviating back tension and discomfort. Ideal for maintaining comfort and promoting better posture throughout the day. PU-Coated Castors for Effortless Mobility: Featuring durable PU-coated castors that resist abrasion and glide quietly over various surfaces, including wood, tile, PVC, and carpet. This design protects your floors from scratches while enhancing smooth movement. Ventilated Backrest and Generous Padding: The breathable backrest ensures adequate airflow to keep you cool, while the extra-thick seat padding provides optimal support and adjustability for a customized fit during extended sitting sessions. Adjustable and Cushioned Armrests: Scientifically positioned armrests reduce strain on your arms, while the flexible sponge padding delivers lasting comfort and support for your forearms during prolonged use. Synchronized Tilt Mechanism: Experience seamless reclining with the synchronized tilt mechanism, allowing you to lock the chair at any angle between 90 and 155 degrees for a customized experience that suits both work and relaxation.