The wood three-panel ruyi scepter was a popular type in the Qing palace and in the collection of the Palace Museum today. They were made to cater to imperial taste. The so-called "three-panel ruyi scepter" indicates wood scepters with three jade inlays on the head, the middle, and the end. More than ten kinds of wood were used to make these scepters, including red sandalwood, rosewood, yellow sandalwood and boxwood. Some pieces were decorated with auspicious patterns or inlaid with gold and silver. Some have plain handles. The jade pieces inlaid on each panel include both antiques and Qing dynasty carvings. Antique jade pieces were taken from ornamental pieces of the Warring States period (475-221 BCE), jade disks of the Han dynasty (206 BCE-220 CE), jade decorations from belts made in the Song (960-1278) and Yuan dynasties (1278-1368), jade decorations of the Ming dynasty (1368-1644), and jadeite carvings in the Qing dynasty (1644-1911). Qing craftsmen also used jade from Hetian in Xinjiang province, which was the finest jade at that time for imitating ancient styles. All examples were exquisite and exceptional.