http://www.ydsign.com/signage/indoor-signage/ Indoor Signage in stock Foam & PVC Plastic Letters Our lightweight foam & PVC letters are perfect for indoors and are extremely durable. We choose high-density foam core with a hardened smooth surface on the front and back. They are usually routed and then painted in any set of custom colors. 1/4鈥?and 1/2鈥?PVC is our absolute favorite choice for all indoor and outdoor routed dimensional letters. PVC letters are perfect because they allow smooth routing and hold the paint very well. They are the best choice for interior lobby signs and exterior logo signs. Metal Letters If you are looking