Office chairs are specially designed seating options used in workplaces to provide comfort and support during long hours of sitting. They often feature adjustable height, lumbar support, and wheels for mobility, making them suitable for various tasks and desk setups. These chairs come in different styles, including ergonomic designs that promote good posture and reduce strain on the back. Materials can vary from fabric to leather, and many office chairs are equipped with additional features like armrests and reclining capabilities to enhance user comfort and productivity.