360°Low-noise Quiet Casters 4 hidden low-noise quiet casters, do not hurt the floor,both aesthetic and can be moved freely.Ensure that you can use the table for office reading and eating anywhere! Removable Safety Edge Stopper When the panel is tilted the lower side can be fitted with a practical safety edge guard to prevent objects from slipping, which does not interfere with the use of the other side when the panel is horizontal. Spring-loaded Locking Handle The height of the table and the angle of the panel tilt can be easily adjusted by simply pulling the spring-loaded handle upwards gently. Concealed small drawer A concealed small drawer under the table for storing pens, USB cables, keys and other small items without sacrificing aesthetics.