OPTTICO Office Chair Casters Wheels Replacement - Computer Chair MAT for Hardwood Floors Not Needed, Desk Rollerblade Chair Wheels with Soft Rubber Rollers. Best Chair Casters for Wood Floors

NOT FIT 40mm Diameter Base Hole.
NOT FIT 40mm Diameter Base Hole.

Gas cylinder may possible break the package when the button is pressed and triggered during the shippment.

If received Empty Package or not perfect gas cylinder, please contact seller for free replacement, instead of leave negative review directly.

Product Description
Size: 6" (150mm) marked as 6.3" (160mm)
Adjustment Height (Piston Travel): 6" (150mm)

Cylinder Overall Length: 12.4"-18.3" (315-465mm),
Smaller tube Length: 2.8" (70mm),
Bigger tube Length: 9.6" (245mm)

Diameter of the outside metal tube is 1.57" / 40mm for bottom, 2" /50mm for above body.
Diameter of the smaller metal tube is 1.1" / 28mm.
Diameter of the plastic button is around 10mm.

Features:
- Adjust height of office chairs
- Class 4 level, Top Quality Level, Heavy Duty Construction, Specialized for Heavy Person,BIFMA Plus Quality
- Allows full 360 degree rotation

If your gas cylinder has worn out on your chair or stool, you may want to consider this Heavy Duty option. This replacement office chair gas lift cylinder is more heavy duty than standard chair gas lift cylinders. It's a great replacement option for damaged or worn out gas lifts on office chairs, task chairs, executive chairs, & more! While this gas cylinder will fit the majority of chairs and stools, it will not fit all. Please measure your original cylinder to be sure. Minimal dimensional differences shouldn't alter performance of lift when installed. Always remove gas cylinder with care and never heat or puncture.

if product missing, what shall I do ?
If happens to receive nothing but an empty package, No worry, just contact MySit by message/email to offer free warranty gas lift.
if product not fit or not work, what shall I do ?
Please contact seller to offer good solution.

CLASS 4 LEVEL GAS LIFT CYLINDER -- This heavy duty gas lift cylinder made with high construction industry standard (BIFMA Plus Qaulity) for heavy and tall person.
ADJUSTABLE HEIGHT 5.5 INCH -- Adjustable Height 5.5 Inch, the fully expanded height is 17 inch, the fully compressed height is 11.5 inch, which suitable for tall person.
HEAVY DUTY 450LBs CHAIR PISTON -- MySit office chair gas lift cylinder holds up to 450lbs for most office chair, executive chair, computer chair, gaming chair.
REPLACEMENT PARTS FOR MOST OFFICE CHAIR -- Universal size replacement for most of office chair cylinder, executive chairs cylinder, full 360 degree rotation, smooth and without noise move to all directions.
EASY TO INSTALL -- You can installed easily without additional screws required, fix your sinking office chair by this standard size replacement chair piston instead of purchasing a new chair.
CLASS 4 LEVEL GAS LIFT CYLINDER -- This heavy duty gas lift cylinder made with high construction industry standard (BIFMA Plus Qaulity) for heavy and tall person.
ADJUSTABLE HEIGHT 5.5 INCH -- Adjustable Height 5.5 Inch, the fully expanded height is 17 inch, the fully compressed height is 11.5 inch, which suitable for tall person.
HEAVY DUTY 450LBs CHAIR PISTON -- MySit office chair gas lift cylinder holds up to 450lbs for most office chair, executive chair, computer chair, gaming chair.
REPLACEMENT PARTS FOR MOST OFFICE CHAIR -- Universal size replacement for most of office chair cylinder, executive chairs cylinder, full 360 degree rotation, smooth and without noise move to all directions.
EASY TO INSTALL -- You can installed easily without additional screws required, fix your sinking office chair by this standard size replacement chair piston instead of purchasing a new chair.

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