Turn your aquarium into an archaeological dig with the Penn Plax Undersea Urn Aquarium Decor - Small. This fun urn offers fish a spot to hide and really adds style to any aquarium. It"s crafted of non-toxic resin and is perfect for saltwater or freshwater aquariums. * Durable resin construction * Features a broken urn filled with seashells * Designed for both fresh and salt water aquariums * Perfect addition to your aquarium * Dimensions: 5W x 7H in.