Features: Eliminate the annoyance of a sinking chair with our Swpato Chair Saver set, featuring a robust stainless steel shaft and easy to use wrench and nut for a secure fix.Designed to maintain your office chair's height, this set includes a gas lift cylinder holder and removal tools, ensuring a stable and comfortable seating experience without any unwanted downward drift.Suitable for office professionals and students alike, this chair saver set caters to anyone looking to enhances their seated postures and comfort during extended periods of work or study.Whether in a bustling corporate office or a quiet home study, our chair saver set seamlessly integrates into any workspaces, providing a practical solution to common chair issues.Extend the life of your office furniture and in your well being with this multifunctional chair repair set, transforming any wobbly chair into a pillar of support.Specifications: Material: stainless steelInternal diameter: about 2.5cm/0.98inchExternal diameter: about 4.8cm/1.89inchThickness: about 1.5cm/0.59inchPackage Includes: 1 set Office Chair Repair Toolnote: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid,Due to the difference between different monitors, the picture may not reflect the actual color of the item.