2 Black Glass Top Travel Jewelry Display Carrying Case 30″ x 17 1/2″. New Glass Top Show Case Display 30″ x 17 1/2″. This is a beautiful new set of 2 glass top display travel cases. These cases provide ample display and storage for trade shows. Each holds a full size tray insert and the glass panel allows for you to show your jewelry without having to open the case. The cases each have two locks with keys and a handle for easy carrying. Each measures 30″ x 17 1/2″ x 3.