Mayline 24-Hour high-performance dual-clutch swivel task chair 24-Hour High-Performance Dual-Clutch Swivel Task Chair, Burgundy Fabric Designed for durability during intensive use by individuals up to 300 lbs. High-density memory foam seat with heavy-duty mechanical control allows hours of comfortable, continuous work. Meets or exceeds ANSI/BIFMA standards. Casters supplied with this chair are not suitable for all floor types. Alternative casters are available to meet your specific needs.