Product Features: - A curved backrest with lumbar support reduces fatigue after sitting for long periods of time. - The height of the seat is adjustable to meet your every need. - Built on castors with an adjustable seat height and 360 degree swivel, it helps you move around and adjust your position with ease. Ergonomically designed for comfort for those who work at desks for long periods. - The soft sponge cushioned seat and breathable mesh back give you a cool and comfortable seat experience even in hot weather. - This durable and sturdy mesh chair is ready for your long-term use.