The Clear Poster Pocket is a specially designed clear sign hanger for hanging on the Poster Rail Hook. Made from scratch resistant PVC plastic, the clear poster pocket has a curved lip at the top of the pocket which hooks into the groove on the Poster Rail Hook. Sign changes are fast and easy. Just unhook the pocket from the groove on the Poster Rail Hook, slide your new sign into the pocket, and hook it back onto the rail. No tools are needed. The PVC pocket helps to protect your signs from dust, dirt and damage. Multiple pockets can be hung on a rail, depending on the length of the rail and the poster pocket. Holds an 8.5" x 11" sign or poster.