These planters are thick, heavy plastic.  They should work well as they are deep.  They arrived in excellent time but not in perfect condition.  They actually looked like they had been previously returned as there was no packaging or product information material with them, they had scuffs and marks on the surface and a few permanently dinted spots along the rim.  I felt they were a good price however and due to Covid limitations, I decided not to complain or return them.  In addition, I would say they are not particularly attractive.