Rubber bands on the surface don't seem like a likely or even effective restraint. That's the mistake Kim made as well. With bands securing her wrists and ankles to the wall in a semi-spreadeagle position she wasn't going anywhere. Unlike most restraints, rubber bands give a false feeling that you can break free. The resistance eventually fatigues her muscles making it hard to keep a comfortable position. Before long the very bands that kept her secure keep her from falling to the ground. In the end, she is given scissors to escape but put just out of reach. It's not long before the last of her energy is used up and slumps down in exhaustion.