4000 Contoured Support Hi Back Multi-Function Exec. Chair w/Headrest 4000 Contoured Support Series High Back Multi-Function Executive Chair with Headrest Shown with optional Adjustable Arms (CTV12ADJARM), sold separately. Unique contour seat evenly distributes body weight to minimize pressure under thighs and helps eliminate body fatigue. Contoured back and inflatable lumbar pump provide lumbar support. Pneumatic seat height adjustment. Back height adjustment. Carefree acrylic/poly blend upholstery. Black nylon base. Meets or exceeds ANSI/BIFMA standards. Manufacturer's limited lifetime warranty. Comfortable, height-adjustable headrest. Three separate controls allow independent seat and back adjustments, tilt (free float or locking), forward tilt. Tilt tension. Seat: 20w x 18-1/2d. Back: 20w x 24h. Overall height 43-1/2" to 47". Shpg. wt. 52 lbs. Assembly required. (Can not ship UPS.) Casters supplied with this chair are not suitable for all floor types. Alternative casters are available to meet your specific needs. Blue Fabric