Adjustable Comfort: Featuring a 4 inch piston stroke, this gas lift cylinder allows for chair height adjustments from 27.2cm (10.7 inches) to 37cm (14.5 inches), ensuring optimal seating comfort and ergonomic posture alignment for various desk heights. Robust Build Quality: Crafted from thick alloy steel, our heavy-duty gas lift cylinder supports a maximum weight of up to 450 lbs. Its universal design ensures compatibility with 99% of office chairs, providing a reliable and long-lasting performance. Versatile Height Options: Available in three sizes, our gas lift cylinder offers flexible height adjustments. This feature enables you to achieve higher lifts and adapt your office chair for a variety of desk configurations and user heights. Installation Made Simple: This gas lift cylinder can be installed effortlessly without the need for additional screws. Typically, removal of the old cylinder might require a rubber mallet, but our design ensures a smooth transition and easy setup. Wide Application: Ideal for replacing gas lift cylinders in standard office chairs, task chairs, executive chairs, salon chairs, and rolling stools. Our cylinder fits 99% of chairs on the market, making it a versatile choice for various seating solutions. Colour:black Material:Metal Due to different batches, there may be differences in product appearance and printed text, which will not affect use Package Contents: 1 * Chair Gas Lift Cylinder Replacement Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.