Features 1、Made of high quality aluminum alloy, high hardness, high strength, rust and corrosion resistance. 2、The front and rear covers are threaded to the cylinder tube for tight connection. 3、The piston seal adopts a special-shaped two-way sealing structure, which is compact in size and has oil storage function. 4、The front end cover is guided by self-lubricating bearings, which has good lubrication and guiding performance. 5、Simple structure, easy to install and use. Specification Condition: 100% Brand New Item Type: Air Cylinder Inner Diameter: Approx. 20mm / 0.8in Stroke: Approx. 10mm / 0.4in Main Material: Aluminum Alloy Working Medium: Air Working Pressure: 0.1 ~ 1Mpa Guaranteed Pressure Resistance: 1.5MPa (215Psi) Hole Diameter: M5x0.8 Mode Of Action: Double Action Buffering Method: Crash Pad Temperature: 4°F~176°F (-20°C~80°C) Package List 1 x Air Cylinder