Gas Lift Cylinder for Office Chairs: Heavy Duty Gas Rod - Length 34-54cmSafe,Sturdy and Durable - with official lab test and certification,Kaleurrier gas lifting cylinder for office drafting chairs and bar stools, used high quality materials & thickened steel outer to make sure it meets the BIFMA Level 3 standard. It Supports 1000 lbs max weight which is much heavy duty than normal gas cylindersChair Saver - If your office chair or rolling stool starts sinking, leaking gas or failing,SAVE MONEY by purchasing our gas cylinder as replacement instead of buying a whole chair or stool painfullyUniversal Standard Size - Applicable for 2 inches(50mm) diameter center hole base, fits most office chairs, task chairs, executive chairs,drafting stools,office,bar,shopp & salon stools, etc. Tips: Measure your existing chair shock then make the purchase in correct sizeLift Freely & Big Extension - Minimum length 34cm,maximum length when fully extended: 54cm. Go up and down smoothly and noiselessly. Functions:Adjust height by 20cm & Rotate seat in 360-degreesA heavy-duty Pneumatic Lifting Rod: has passed international safety certification and is designed specifically for high-intensity use and heavy weight users. It provides a smooth and silent reliable lifting experience, completely solving the problem of "falling chairs" and safety anxiety. It is the core upgraded component to extend the life of your beloved chair
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