【Ergonomic Office Drafting Chair】Adjustable lumbar support conforms to the natural curve of your spine, and can be adjusted in a range of 2 Inch to suit people of different heights. office chairs back support effectively reducing back pain and lumbar pressure, protecting your spine, the thick seat can also relieve Hip pressure, Desk Chair provide you with a comfortable experience, and you will not feel tired after sitting for a long time. 【Drafting Chair with adjustable design】The cute Tall Office Drafting Chair is adjustable in height by 8 inches (52cm/20.4" to 72cm/28.4") to suit different heights and needs. Tall Drafting Office Chair with foot rest Adjustable Height 0cm/0" to 23.5cm/9.1", helps you move your feet frequently, reducing pressure on the back of your legs and increasing comfort. The armrest of the office chair can be flipped 90°in the vertical direction to save a comfortable working spaces. 【Sturdy and Durable】The 360° smooth rolling swivel casters allow you to move anywhere you want, rolling smoothly and reducing the sound when sliding. Desk chairs with wheels fits and protects any floor for added safety and stability. And 300 lbs load capacity, strong and durable base, SGS certified air lift equipment, 3-stage spring cylinder, added safety and stability.