Korean fabric arts have a long history, and include Korean embroidery used in costumes and screenwork; Korean knots as best represented in the work of Choe Eun-sun, used in costumes and as wall-decorations; and lesser known weaving skills as indicated below in rarer arts. There is no real tradition of Korean carpets or rugs, although saddle blankets and saddle covers were made from naturally dyed wool, and are extremely rare. Imperial dragon carpets, tiger rugs for judges or magistrates or generals, and smaller chair-covers were imported from China and are traditionally in either yellow or red. Few if any imperial carpets remain. Village rug weavers do not exist.