WHAT’S INSIDE YOUR OFFICE CHAIR CYLINDER SUPER BUNDLE? ! We included literally EVERYTHING you need to replace your office chair gas cylinder easily, quickly and painlessly! BREATHE NEW LIFE INTO YOUR OLD CHAIR : If your office chair starts sinking, SAVE MONEY by purchasing our office chair cylinder instead of spending money on a brand new chair! This purchase makes total sense, and comes with everything you need for a painless replacement! Backed by our money back guarantee, there is no reason NOT to make this purchase! UNIVERSAL SIZE GAS LIFT: Our office chair cylinder replacement will fit just about any office chair including popular brands ! If for some odd reason it doesn’t fit your specific office chair, return it for a no questions asked refund. You have nothing to lose! How to choose a suitable gas lift cylinder? 1. Reliable For a pneumatic product, quality is the first. 1.Our products are of excellent quality and 2 years warranty 2. The right part to replace the office chair & stool a. This gas lift cylinder is suitable for most executive chair & stool. But we still recommend that you measure the dimensions of your old gas lift cylinder before buying, so as to choose the correct size. b. It's also important to know what you need. The extension length of this gas lift cylinder is 2-4 inches longer than normal.