The Container is used in the 3Dponics Herb Garden to keep the nutrient solution at a desired level. You can print multiple copies of the Container and stack them on top of each other to create a tall, vertical hydroponic system that fits inside small spaces (e.g. city apartments, small terraces or patios, kitchens, etc.). This part is designed so that the excess nutrient solution drains from one container into the next so nothing goes to waste. 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!