Most string figures consist of a design stretched between parallel upper and lower frame lines.
Without the frame lines the design would collapse. There are, however, a few string figures whose frame lines are not strictly parallel. Here's a very pleasing design from the Tuamotus archipelago that lacks an upper transverse frame line. Rather, the design hangs from two upper frame strings that cross. Because string figure titles and chants are often ancient, they are not always easy to translate.