Changing signage is a snap with the Easy Slide Angle Iron. Simply slide in a rigid substrate up to 6 mm thick and it stays put. No hardware required and no pieces to lose. Both sizes include a space below the sign to slide in a 6" rider sign. Available in 18" x 24" or 18" x 30" sizes. SHIPPING WILL BE EXTRA. Custom imprinted signs also available for an additional charge