Features adjustable headrest, 4D flip armrest, adjustable lumbar support and height adjustment, 3-position tilt lock, all functions included in this chair, maximum capacity up to 125kg. They believe this classic and modern chair will enhance your comfort to a new level. All the necessary hardware and tools are included with this ergonomic mesh task chair. Easy to install and ready to use in about 10-15 minutes. A 12-month warranty applies to all parts. We focus on creating comfortable and high-quality office chairs. NANJING HENGNING HOME FURNISHING CO., LTD.