The Gan 13 Maglev FX is a new speedcube from Gan, it is essentially a reduced version of the original Gan 13, it has no ability to change the magnet strength and while you can theoretically change the elasticity and tensions with the right tools, the cube box does not contain the tools to do so. The Gan 13 MAGLEV features 8 core magnets, 56 piece magnets, 12 repulsion magnets and 12 maglev rings and still weighs only 71g!