Pra Ruang is a Classic Ancient Style of Amulet which has been found in Archeological finds of Kru Burial Chambers in ancient temples and Chedi Stupas, and has been a favorite amulet to make in many temples of the North and North East of Thailand.

The Pra Ruang has been found in both Lopburi and Sukhothai archeological digs, and is found in both Clay and Metallic versions. There are also sitting forms of Pra Ruang Buddha Images.

There are various interpretations of who the Buddha image represents, the most common being that it is derived from the Pra Ruang Royal Family Lineage, who were the first and only rulers of the Sukhothai Kingdom Era of Thai History. King Pra Ruang was the father of Por Khun Ramkamhaeng, who invented the written Thai Language, and is revered as a Deity in his own right by Thai People.