
Mastery Mart
We enhance office life with solutions for comfort and efficiency, driven by continuous innovation and excellence.



How durable is this gas lift?
The office chair cylinder is made from high-strength alloy steel, high-quality thickened outer steel, high safety and explosion-proof. The gas lift cylinder has passed SGS official test and BIFMA certification, highest safety Class 4.
Will this chair cyinder fit on the herman miller aeron office chair?
Yes, our cylinder measures 1-1/8” (28mm) at the top, where it fits into the chair seat, shaft diameter 2” (50mm) at the bottom, where it fits into the chair base, you can measure your original cylinder before ordering.
What are the measurements of the cylinder, shortest and longest height as well as overall length and width?
Top of the cylinder: 1-1/8”, Shaft diameter:2”,
Shortest and longest height for 4“ stroke ( 9.88 Inches -13.6 Inches );
4.5“ stroke ( 10.7 Inches -15.2 Inches );
5.5“ stroke ( 11.7 Inches -17.2 Inches );
8“ stroke ( 14 Inches -21.8 Inches ).
Will this chair cyinder work for 1KEA office chair?
No.
Check Out All the Size Office Chair Cylinder
Mastery Mart
We enhance office life with solutions for comfort and efficiency, driven by continuous innovation and excellence.



How durable is this gas lift?
The office chair cylinder is made from high-strength alloy steel, high-quality thickened outer steel, high safety and explosion-proof. The gas lift cylinder has passed SGS official test and BIFMA certification, highest safety Class 4.
Will this chair cyinder fit on the herman miller aeron office chair?
Yes, our cylinder measures 1-1/8” (28mm) at the top, where it fits into the chair seat, shaft diameter 2” (50mm) at the bottom, where it fits into the chair base, you can measure your original cylinder before ordering.
What are the measurements of the cylinder, shortest and longest height as well as overall length and width?
Top of the cylinder: 1-1/8”, Shaft diameter:2”,
Shortest and longest height for 4“ stroke ( 9.88 Inches -13.6 Inches );
4.5“ stroke ( 10.7 Inches -15.2 Inches );
5.5“ stroke ( 11.7 Inches -17.2 Inches );
8“ stroke ( 14 Inches -21.8 Inches ).
Will this chair cyinder work for 1KEA office chair?
No.
Check Out All the Size Office Chair Cylinder
![]() Tall Chair Cylinder 4.5‘’ | ![]() Chair Cylinder 4.5‘’ | ![]() Office Chair Cylinder 4‘’ | ![]() Office Chair Cylinder 8‘’ |
|---|---|---|---|
| Customer Reviews | |||
| — | — | — | — |
| Price | |||
| — | — | — | — |
| Brand | |||
| Mastery Mart | Mastery Mart | Mastery Mart | Mastery Mart |
| Material | |||
| Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel |
| Stroke Length | |||
| 4.5" (12cm) | 4.5" (12cm) | 4" (10cm) | 8" (20cm) |
| Minimum and Maximum Length | |||
| 10.7 Inch -15.2 Inch | 10.7 Inch -15.2 Inch | 9.88 Inch -13.6 Inch | 14 Inch -21.8 Inch |
| Fit for | |||
| Fix Sinking Office Chair | Fix Sinking Office Chair | Fix Sinking Office Chair | Fix Sinking Office Chair |
| Top Piston Diameter | |||
| 1-1/8" (28mm) | 1-1/8" (28mm) | 1-1/8" (28mm) | 1-1/8" (28mm) |
| Outer Tube Diameter | |||
| 2" (50mm) | 2" (50mm) | 2" (50mm) | 2" (50mm) |


































