Air Cylinder, Body Material Aluminum, Cylinder Type Round Body, Cylinder Repair Repairable, Magnetic Piston Magnetic Piston, Mounting Type Basic, Bore Diameter 1 1/2 in, Cushion Type Head and Cap, Stroke Length 4 in, Inlet Size 1/4 in, Spring Retraction Force Not Applicable, Cylinder Action Double Acting, System of Measurement Inch, Body Material Finish Silver Plated, Piston Rod Material Finish Chrome Plated, Overall Height 11 3/16 in, Maximum Operating Pressure 150 psi WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Nickel (Metallic)