BAOQI:Shuttering magnet adopts a new structural design and different way of using. At the bottom of the magnetic box , the metal column replaced the fixing screw, so that the metal column and the magnet can work independently without affect. During the switching process , only the position of the metal column needs to be adjusted, so that the magnet is not affected , avoiding to be repeated vibration damage of the magnet . With the help of the lever principle in mechanics , we can easily realize the function of the magnetic box turned on/off that only using one hand . Therefore , compared with the common magnetic box , it is more convenient , fast and no using other tools again. So it can save cost , improve efficency and produce better precast concrete products