Differences between Multidirectional and Combi Assembly
The Multidirectional model has an additional possibility which is the Multidirectional Frame (It is called COMBI). It is used because it is faster and more economical. It consists of a frame formed with multidirectional couplings, crossbar and lattice guard rail of quick assembly.
It is common to use multidirectional with frame and combine with pure multidirectional pieces.