98HAB The Deluxe Directory Board Cabinet features an internal depth of 2″. Back panel is grooved black felt to hold letters securely in place. Available with either sliding or hinged doors. Tempered glass doors are 3/16″ thick and lock to help prevent tampering. Framed with 1 3/4″W x 3″D heavy gauge anodized aluminum. Includes set of 300 letters and numbers. Other sets available separately. TAA compliant. Made in the USA.