Feature:1. One of the important parts of the air compressor, and both the installation and replacing are very convenient.2. The sturdy construction is not easy to deform, which also promises stable working and high working efficiency.3. Made of premium aluminium alloy, the air compressor cylinder sleeve has a light weight and excellent durability.4. The outer diameter is 68mm, the inner diameter is 63mm, and the height is 23mm.5. Suits perfectly for OTS 550W silent and oil free air compressor, very practical.Specification:Item Type: Air Compressor Cylinder SleeveProduct Material: Aluminium AlloyColour: SilverOuter Diameter: Approx. 68mm / 2.7inInner Diameter: Approx. 63mm / 2.5inHeight: Approx. 23mm / 0.9in Package List:1 x Air Compressor Cylinder Sleeve