• Pneumatic / gas cylinder Heavy duty lift for office chair height adjustment
• 5.5” stroke (seat travel from lowest to highest settings)
• Gas spring diameter 1.1”.
  
• Column diameter 50mm , 1.93” and chrome plated.
  
• Dimensions when fully compressed: 11”. Fully extended: 16.5”
• Both ends of cylinder have industry standard 17-4 taper
• Under base extension 1”
• Exceeds BIFMA standards.  Typically installed on chairs rated up to 350 lb.
  
• Cylinder shipped completely assembled ready for use