The main feature of Wat Arun is its central prang (Khmer-style tower) which is encrusted with colourful porcelain. This is interpreted as a stupa-like pagoda encrusted with coloured faience.The height is reported by different sources as between 66.8 m (219 ft) and 86 m (282 ft). The corners are surrounded by four smaller satellite prang. The prang are decorated by seashells and bits of porcelain which had previously been used as ballast by boats coming to Bangkok from China.The presiding Buddha image, cast in the reign of Rama II, is said to have been moulded by the king himself. The ashes of King Rama II are interred in the base of the image.