About Penn Plax: Penn-Plax is a family-owned company in operation since 1959. They specialize in creating excellent pet supplies for animals both great and small. Best known for producing pet products at affordable prices, the Penn- Plax brand is synonymous with innovation and quality, keeping your pet foremost in mind. Hand-painted treasure chest ornament. Extremely detailed; individual coins are visible. Combine with other ornaments to make an original scene!. Durable molded resin construction. Available in various sizes to fit your tank.