Detail photo of two wire "S" hooks and a spring-mounted hand clamp (positioned next to a pen and pen cap for scale). "S" hooks are usually available at no cost through the decorating company on site. Spring clamps are sold through hardware stores. Exhibitors may need to remove all colored plastic grip sleeves that are usually sold with clamps. Be sure to ask your neighboring exhibitor for their permission to use the clamps, as a small part of the clamp may be seen on the inside tops of their booth.