Manufacturer Part Number (MPN) : MXP-1803BCUBOID MEDIUM Cuboid organizers are soft containers excellent for travel and ideal for items that dont wrinkle when folded or rolled. Their mesh areas allow viewing of contents. They are specd to fit within each other. Two #1803 Medium CUBOID will fit into one #1802 Large CUBOID. Two #1804 Small CUBOID will fit into one #1803 Medium CUBOID. When not in use, they can be stored within each other to save closet space.