It"s not a treasure chest unless there"s some Jolly Roger action going on. That"s why the Penn Plax Resin Skull and Cross Treasure Chest - Large is the real deal. This awesome treasure chest is a classic piece of aquarium décor that looks great in any setting. It"s crafted of non-toxic resin that won"t alter water chemical levels. * Durable resin construction * Features a treasure chest ornament in brown * Decorated with a pirate skull and bones * Designed for both fresh and salt water * Perfect addition to your aquatic environment