With this model, you can upcycle the glass jars commonly found in Europe into mini greenhouses for your plants. It has a water reservoir and a lip to collect condensation water and re-inject it in the reservoir (See cross-section image for detail). With the hexagonal design, you can pack them in a honeycomb pattern or mix sizes easily.
I have created 4 models matching 4 different sizes but you can easily design new sizes for your jar.
To find your size, measure the outer diameter of the opening of the jar.
The 72mm is also available with larger sides because my apple purée jars have narrow opening but are quite wide, this is to allow to pack them together without the glass touching.
Happy Farming!