Slide Cylinder STM Series Guidance: The double piston rod provides a high degree of rigidity against bending and torsion, guaranteeing the longevity of the cylinder and excellent guiding performance. Easy installation: There is an assembly groove on the top of the body, which makes the installation, fixation and position adjustment of the magnetic switch extremely simple. With magnetism: The cylinder piston is equipped with a permanent magnet, which can trigger the installation on the cylinder