Ideal for miniature gardening and centerpieces, Low Square offers a handsome alternative to the traditional round planter. ArtStone planters are made from a proprietary blend of resin materials, with a significant amount of natural stone. Lightweight and durable. BPA-free/non-toxic. Made with recycled materials. Features a rubber (removable) stopper for drainage, no need to punch holes and a footed bottom that allows for airflow. Includes a built-in unique Water-Minder™ reservoir that re-feeds plants as needed, no need for saucer or tray. UV-stabilized and frost-resistant, can be left outdoors year-round.