Lilfurni High Piston Adjustable Extended Height1852874 Hydraulic Gas Lift CylinderUniversal Size Replacement for Most Stool ChairsSmooth and NoiselessBlack

10 STROKE ADJUSTABLE Minimum length 185 inches47cm Maximum length 2874 inches73cm You can find the correct seat height for comfortable sitting HEAVY DUTY Gas lift cylinder that holds great weights tall center support column of the chair Holds up to 450 lbs on bar stool drafting stool and chair drawing stool and chair CYLINDER DIAMETER Universal modelOuter cylinder 2 inches 50cm Inner cylinder 1 inche 28cm SMOOTH and NOISELESS Pneumatic shock makes it easy to rotate 360 degrees smoothly and silentlyCan be installed easily You can reference instructions on Youtube GUARANTEE Certified by SGS Test5Year quality warranty we are dedicated to providing 100 customer satisfaction Usage Note This cylinder has a tall lift heightPlease measure before purchase Please refer to the picture for the specific sizes