The average hanging sign for your typical trade show does not actually require the use of a truss system to suspend the sign above your booth. Smaller signs sized up to 20 or 30 feet only need the usage of standard cable rigging. By using the cable rigging, the sign is connected from the hanging sign itself to specific points on the convention center ceiling. The top of the hanging sign that connects in this way can also be called a bridle. However, when it comes to making as big of an impact as you can, you want your sign to, quite literally, tower above the competition.