3D Printed self-watering planter that uses a leftover jar for its body. The great thing about it is that you will always know what level the water is at. The model is based on a jar with a 67mm top hole diameter. Personally, I use these planters to grow basil & salad, but I’m sure you’ll find some other uses for it too. Happy growing! Jargar - Self-Watering Planter in A Jar