Retractable posts are important components used to connect the "one-meter line" and are the top beams to maintain site safety. They play an important role in isolating people and guiding directions, playing an irreplaceable role in various occasions. With the evolution of craft, there are more and more styles of stainless steel polished retractable posts, and the role of which is no longer limited to security measures.

In recent years, a series of campus safety incidents have occurred, and the construction of campus security has attracted more and more attention from the whole society. Improving the school's safety risk prevention and control system has become the focus of construction. In fact, not only school safety needs to be paid attention to, but also the safety protection of companies, banks and other places is also very important. Economical retractable posts are widely used. However, not all users know how to use retractable posts correctly.