The Placard channel lower rail is a lower guide for boards of the Placard 74 rail model, which is made of resistant aluminum with a white paint finish. Its length is 2.25 m and it has a total width of 48 mm and 37mm wide in the channel between the flanges which are 6mm high. The bottom rail can be used with boards of minimum 16 mm, 18 mm, and maximum 19 mm. Its packaging contains 8 units of the lower Placard rail, it can also be used with any of the essential products of the Placard 74 line.