• HEAVY DUTY CLASS 4 PISTON:SGS & BIFMA Certification safety lift cylinder, which has passed over 100,000 times of rotation/push/pull/impact test, with no loss of usability function after the experiment,they built with high-quality solid steel that can support maximum weight up to 1000 LBS.
• 5.5 IN ADJUSTABLE HEIGHT: Office chair gas cylinder adjustable range 5.5 IN : chair piston fully expanded height 16.9 IN-Minimum length 11.4 IN,which allows you to rise higher and more Use office chairs in case
• UNIVERSAL SIZE THAT FITS MOST CHAIRS. Outer cylinder diameter 50 MM (2 IN). Inner cylinder diameter 28 MM (1.1 IN). (salon chairs, executive chairs, work chairs, rolling stools) on the market, and has a better load-bearing capacity
• EXCELLENT ALTERNATIVE:Stable use, no noise, silent 360° rotation and aerodynamic impact, making the operation simple and smooth. No noise to colleagues even when turning or lying on a chair to rest
• HIGH-QUALITY GAS CYLINDER: This is a quiet/durable/sturdy office desk gas cylinder. Able to work well in the office