The Jaivana (Hindi: जयवाण) cannon is the largest wheeled cannon ever constructed. It is located at the Jaigarh Fort, Jaipur at. It was cast in 1720, during the reign of Maharaja Sawai Jai Singh II of Jaipur. The formidable strength of its builder, the scientifically inclined warrior Sawai Jai Singh II, lay in the large number of artillery and copious supply of munitions which he maintained. Jaivan rests on a high 4 wheeled carriage. The front wheels are 2.74 m in diameter and the rear wheels are 1.37 m in diameter.