These garden beds are shaped from metal by skilled craftsmen utilizing precise folding of the metal to create a planter bed that assembles from four panels. Planter bed panels interlock together to form an incredibly solid plant container that provides maximum planting area and room for deep roots. Most of all, these planter beds are simple, stylish, modern and minimalist. Please note: Corten Steel planter beds do not ship pre-weathered and will arrive with the bare steel finish which will weather over time to develop a rich, golden brown rust color and texture; they should be placed on grass during weathering process to avoid staining of adjacent materials.