Then came the long rod, divided into feet and the decimal fractions of a foot, that was to be used with the level, and two slender flag-poles painted red and white, so as to be seen at long distances. At their lower ends these poles were tipped with sharp iron points, and at the other they bore small flags of red flannel. They went with the transit, and were to designate the points at which the sights were to be taken through its telescope.