These products replicate the look of lead, iron, concrete, and terra cotta at a fraction of the weight to provide ease of handling. While they are considered frost-resistant, these lightweight containers should be brought in during the winter and stored in a covered, frost-free location away from the elements. This innovative material convincingly replicates the look of lead, iron, and concrete but is up to eighty percent lighter than traditional materials. • Produced by a patented process • Durable, non-flammable, and eco-friendly • Made from clay and other naturally found materials • Frost Resistant • U.V. Resistant • Naturally retained salts will ensure natural aging.