Lorell LLR63282 High-Back Executive Chair Functions include pneumatic seat-height adjustment from 18-1/4" to 21-3/4", 360-degree swivel, tilt, tilt tension, and tilt lock Overall chair height adjusts from 43" to 46-1/2" High-back chair meets or exceeds applicable ANSI/BIFMA standards and meets the CA117 fire-retardant standard Functions include pneumatic seat-height adjustment from 18-1/4-inch to 21-3/4-inch , 360-degree swivel, tilt, tilt tension and tilt lock Overall chair height adjusts from 43" to 46-1/2" High-back chair meets or exceeds applicable ANSI/BIFMA standards and meets the CA117 fire-retardant standard