A caveja (pl. caveje, lit. 'ankle')[1][2] is a wrought iron rod which was fixed at the helm of a plough or cart to prevent the dislodging of an ox's yoke in the event of a sudden stop.[1][3] It is a symbol of the historical region of Romagna in northern Italy, where it was widely used.[4][5][6] In the rest of Italy, the caveja is more commonly known as a cavicchio or chiodella.[7]