The stepping stones are thin and made of some type of plaster. One arrived with a large chip on the side, another had a large bubble hole from the plaster mold. I thought the stepping stones would be made out of either stone or cement. The surface design is cheaply painted on, don't think they will hold up if they get wet. I have them tucked in the back of a planter surrounded by plants, they look nice from far away. The quality control on this item is really lacking!