Lava is a volcanic stone that, once it's enamelled, becomes an extremely long-lasting material and keeps its characteristics even with temperatures ranging from 1000 degrees to -50 degrees. It's suitable for any outdoor or indoor environment, as snow, rain, sun or salt-rich environments can't alter it. It does not suffer when it comes in contact with acid solutions, corrosive chemicals, heat sources and does not absorb any type of substance.