10" Pneumatic Adjustable Seat Height (22" to 32"): Promotes circulation and relieves tension. Molded Polyurethane Seat & Back: Inhibits punctures, tears, and moisture absorption. Deep-Contoured Seat & Back: Provides stability, proper posture, and maximum comfort! Heavy-Duty Seat Control: Comfortably supports up to 300 lbs. in multi-shift environments. Chair Back & Depth Adjustment: Allows maximum worker comfort and safety! 5-Leg Steel-Constructed Base: Premium strength, durability, and stability! Chrome-Plated Steel Adjustable Foot Ring: Easy height adjustment for safety and comfort. Nylon Glides: Added chair stability and long wear resistance.