The Vegetable Mould holds the baby fruit/vegetable plant in a closed mold so that they take the shape of the mold as they grow. This is how you can cultivate a cubed watermelon, for example. Know how to make this part better? Have ideas for new parts? Visit our website (https://www.3dponics.com) and join our Google+ community (https://plus.google.com/u/0/communities/111638904033818784260) to take 3Dponics to the next level!