Hon Unanimous 24-hour task series high back swivel/tilt chair Unanimous® 24-Hour Task Series High Back Swivel/Tilt Chair, Iron Gray Fabric Ergonomic seating is feature-packed for personalized comfort. Pneumatic seat height adjustment, back height adjustment, 360° swivel, tilt and tilt tension control. Height/width adjustable arms ensure a custom fit for people of all sizes. Upholstery with stain-resistant protection. Black frame and standard casters. High-impact polymer base and heavy-duty swivel/tilt mechanism. Tilt lock.