Description:Precision Design: Designed with minimal internal gaps to reduce chair wobbling, this component enhances stability and ensures a comfortable seating experienceUniversal Compatibility: This guide sleeve is suitable for most office chairs, gaming chairs, and executive chairs pneumatic lift rods, allowing for easy installation and matchingMaterial: Made from high strength pp that is wear resistant ensuring long term stable useSecure Fit: The chair sleeve fits snugly around the pneumatic rod to avoid loosening, thereby extending the lifespan of your chairEasy Installation: Requires only a tap for installation without the need for complex tools, making maintenance and replacement convenientSpecification:Material: PPSize Chart:Outer diameter: 5cm/1.97inchInner diameter: 2.9cm/1.14inchPackage Includes:1Attaches ClampNote:Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.