It is a precious medieval Islamic ceramic artwork unearthed from the Alarcos archaeological site in the Castile La Mancha region of Spain. This pottery jar is a witness to the spread and influence of Islamic culture in the region, and has significant historical and cultural value. The shape is round and covered with a smooth layer of green glaze, which is very common in Islamic art and symbolizes life and prosperity. The surface decoration is simple and elegant, without excessive ornamentation, reflecting the aesthetic concept of pursuing simplicity and harmony in Islamic art. Currently housed in the Real City Museum, it is a masterpiece in the museum's collection of Islamic ceramics.