Skaters also performed a group of smaller figures called loops. The diameter of the loop's circular shape had to be about the height of the skater, and they could not have any scrapes or points on the ice. The place in which the skater entered into or exited out of the crossing of both the loop tracing and the center of the loop had to sit on the figure's long axis, where the loop was divided into symmetrical halves. The center of the loop figure to the place in which the skater entered into or exited out of the loop's crossing had to measure five-sixths of the circle's diameter. The loop's length had to be about one-third of the distance from the place in which the skater entered into or exited out of the loop's crossing of the loop tracing to the figure's short axis. The loop's width had to be about two-thirds of its length. The Q figure begins at the tail of the figure, on the skater's outside edge. It can also begin on any of the four edges, and the direction in which it can be skated can be reversed. When the circle is skated first, it is called a reverse Q. Altered forms of the Q figure often do not look like the letter "q", but "simply employ a serpentine line and a three turn". United shamrocks, spectacles (shapes that trace the shape of eyeglasses), and united roses are alterations of the basic Q figures.