[WHAT YOU GET] - You will get 1 piece of 304 stainless steel fix office chair sinking clamp and 1 piece of hexagon wrench to tighten the screws, convenient and quick installation. The office chair gas lift cylinder brackets which are equipped with silicone gasket can effectively prevent the chair from sinking. [GREAT OFFICE CHAIR SAVER] The upgraded office chair saver can control the height of the office chair, can prevent chair sinking anymore. The universal size office chair sinking clamps can fit most office chairs for the lifting cylinder with outer diameter of 25-28mm (0.98-1.1 inches). After fixing, the office chair can rotate smoothly as before and prolong the service life of the chair. [WIDE APPLICATION] This chair sinking fixing tool can be used in various scenarios. You can use it to fix sinking office chairs in the office, or other similar place which need to be fixed. [EASY TO INSTALL] No need to disassemble the chair or cylinder. Just few minutes to install office chair sinking stop, prevent chair from sinking and bring comfortable seating experience for you. Firstly, adjust the chair to the ideal height you want and mark it. Install the metal plate and rubber gasket, then clamp them to the position and fix it with screws. Firmly Screw on the two bolts on the clamps by hexagonal wrench. Then your chair will no longer drop down. [HIGH QUALITY] - The office chair saver tools are made of 304 stainless steels, sturdy and reliable. Compared with plastic saver, our chair saver can offer you with a very long-term use.