*****STANDARD
CYLINDER DIAMETER: Outer
cylinder: 2 inches, Inner
cylinder: 1.1 inches. Please confirm the measurement before ordering. *****DESIGNED
TO BE HEAVY DUTY: Holds up to 450 lbs on most office, executive and computer chairs. *****5
STROKE FOR ADJUSTING CHAIR HEIGHT: Minimum
length: 10.5 inches; maximum length when fully extended: 15.5
inches; adjustable range: 5 inches *****SMOOTH
& NOISELESS MOVEMENT: Full 360 degree rotation, smooth and noiseless movements to all directions *****EASY
INSTALLATION & MONEY-BACK GUARANTEE: Can be installed easily with no additional screws required. If you are not satisfied with our chair gas cylinder, just return it within 30 days for a full refund.