The Penn Plax Lost City of Atlantis Royal Arches - Large are a noble addition to any aquarium. This fantastic recreation of the Atlantis royal arches will look cool in any underwater setting. Plus, fish love swimming in an around it. It"s greatly detailed and crafted of non-toxic resin. * Crafted from strong and durable resin * Elegant royal arches Easter island * Designed for both fresh and salt water aquariums * Non-toxic and fish-safe * Dimensions: 13L x 8.5W x 8H in.