It is an Axes in showcase system. It can be inserted into the grooves of extrusions. And then it can fix the panels. One axes at the top and bottom of the extrusion will secure the top and bottom of the panel. The panel can be held in place by turning the nut. This axes can fix various thicknesses of panels. It weighs 0.004kg. It is simple to assemble, easy to disassemble and it is robust and durable. The products of LingTong are green and environmentally friendly. If there are some relative needs, LingTong will provide the best service for you in exhibition construction.