Features: 1. 100% brand new and high quality 2. Made of high quality stainless steel material, it is more wear-resistant. 3. Excellent air tightness, it is practical. 4. The surface of the cylinder is oxidized and is not easily corroded. 5. Built-in imported high-strength telescopic spring for longer life Specification: Condition: 100% Brand New Use Pressure: 0.3~0.7MPA Piston Speed: 50~500mm/s Material: Stainless Steel Bore Diameter: 4mm Environment and Fluid Temperature: -10~70 Working Medium: Air Piston Rod Thread Pressure: M2*0.4 Air Pipe: 4*2.5 PU Pipe Optional Style: 1 CJ1B4*5SU4, 2 CJ1B4*10SU4, 3 CJ1B4*15SU4 Package List: 1 * Mini Cylinder Package List 1100% brand new and high quality. 2Made of high quality stainless steel material, it is more wear-resistant. 3Excellent air tightness, it is practical. 4The surface of the cylinder is oxidized and is not easily corroded. 5Built-in imported high-strength telescopic spring for longer life