Add interest and dimension to your display with concrete look risers. The 10" pedestal is made for both indoor and outdoor use. Concrete risers are available in several sizes. This cube serves double-duty as a planter or as a product riser. Made of Fiberstone, a cement-like mixture of poly-resin, fiberglass, and stone powder. With indoor plants we recommend using a liner. Doesn't have a drain hole for outside plants.