These plant pots are designed in two pieces., the pot body and the hanging hook. I tried both PLA and PETG and both work great. The hanging bracket is fastened with CA Glue. The drain holes in the base are arranged so as to allow pots placed under others to be watered via cascade effect. In my application the top pots on the fence are watered by an automated plant watering hose system and all the lower pots get their water from the pots above.