An Insular crozier is a type of processional bishop's staff (crozier) produced in Ireland and Scotland between c. 800 and 1200. Such items can be distinguished from mainland European types by their curved and open crooks, and drop (that is, the hollow box-like extension at the end of the crook). By the end of the 12th century, production of Irish croziers had largely ended, but examples continued to be reworked and added to throughout the Romanesque and Gothic periods. Although many of the croziers are associated with 5th- and 6th-century saints, the objects were not made until long after the saints had died. A majority originate from around the 9th century, and were often used as embellishment between the 11th and 13th centuries.