This are stackable containers and a fitting lid to store blocks of soap. The two containers are designed to accommodate soap blocks with following dimensions (LxWxH): 90mm x 60mm x 25mm/50mm

The tray is put in so the remaining water can drip off. You can use the 'custom' variant, where you use the infill of the print as grid. Set your part to have at least 4 perimeters (on a 0,4mm nozzle) and adjust the top and bottom shells to zero layers.

Before printing check the print orientation due to the overhangs on the lid and the tray.