These are planters designed to be printed in vase mode (that's "spiral outer contours" for you Cura folks). Includes are a smaller 4 inch planter (100mm) and a larger 5 inch planter (130mm) with built-in drainage holes, along with a dish to catch excess water that attaches right to the planter itself.

These can be printed with a standard 0.4mm nozzle and have quite good strength.