The compartments of each tray correspond exactlywith thespeciallypatternedsilicone lid, which works tolockin moisture,preventing leaks, evenbetween compartments. The patterns specific to each box and tray combination are what make it leakproof.

The Munchi 2 compartment tray is interchangeable ONLY with the Munchi Munchbox.

Using your Munchbox with an incorrect tray will void your warranty.