It is designed for use in places where a larger writing area is needed. The university lecturers are one of these areas. Guillotines are produced as Single, Double and Combined. In our product called double guillotine, it is an elevator system. With this system, the above board moves up and down, moving up and down with the following board. This system allows the student to reach the area which is short. Saves space on the board and saves it frequently without deleting it. Another advantage is that students sitting in the back row cannot see the board. Depending on user preference, the surface of the boards can be made in white or blue. You can send us the colors you want.