Gridfinity Calibrate Plate Holder

THE CALIBRATION PLATES HOLDERWhile i trying to calibrate my filament flow rate, i found that i don't have a place to store those plates or displaying it. So i created the storage/display plate to put these plates on. I also created the leveler to make these plates stackable. Added a little slope for each plate's space to make it tilted a little bit when displayed. Gridfinity size is 2x3 on both items.