A kit and greenhouse in one! The Engino S.T.E.M. You first assemble Heroes Greenhouse using the instruction book or the Engino KidCAD app with 3D interactive instructions. Then you can use it as a greenhouse. The greenhouse comes with 12 pots, a presentation tray and a plant sprayer. Plant seeds in the pots and grow your own plants! The greenhouse has a natural ventilation system and a door, so you can easily provide your plants with water. With the Engino S.T.E.M. Heroes Greenhouse is more than just building. You will also learn about the plant life cycle and about photosynthesis!