Gridfinity resistor tray that fits 3 resistors per gridfinity unit. Comes in different widths from 1 to 3 units long, fitting 3 to 9 resistor types respectively. Half-height so another tray can be stacked on top. Length is 2 units for all the models.

There is a section at the top for a label for each resistor. Prints easily and doesn't require much infill.