Nine combinable sizes build up the centre of the product line. It is possible to connect systainer I until V, Drawer-systainer in all sizes, Rack-systainer® and MAXI-systainer® II and III. You can put in 2 MINI-systainer® I in systainer® I, and 5 MINI-systainer® I or 4 MINI-systainer® II in systainer® III.