The Aztec Calendar and Masks Set is hand-painted by an experienced artisan from Mexico City, Mexico. The Calendar measures approximately 16.5" in diameter, the Masks measure 11.5" X 5" inches and each piece has a metal loop on the back which is used to for hanging. The material of the Aztec Calendar Set is stone mix and will have slight differences as they are each painted personally by hand. All purchased products are safely and carefully packaged with bubble wrap in order for your calendar to arrive in safe condition. All packages that are shipped within the United States will be delivered by FedEx. We do not ship to PO box, FPO or APO at this time. Don't settle for Resin "Plastic" Buy Stone-mix, it's Sun and Rain-resistant.