Sojag’s premium 3-Piece Planter Box Set is the ideal solution for green thumb experts or complete novices to the practice. The frame is made of rustproof aluminum while the walls consist of aluminum composite panels that insulate the soil from harsh temperatures. The set features two tall planters with a maximum height of 13 inches while the smaller box measures to 9.3 inches. Both sizes have lengths and widths of 18.6 inches. The boxes can be arranged in any fashion and offer a contemporary touch to any patio or gazebo.