This is a pack for Matrixed Marble Machines that contains flat "coupler" plates that are handy for many different uses but especially to use as baseplates, as platforms or for coupling neighboring things together. These are basically just an assortment of Gridfinity baseplates but they are specifically designed to work well with Matrixed Marble Machines modules. Additional materials required to build this model include neodymium magnets. Consult included documentation for an exact bill of materials.