This new Signicade allows you to change signs in seconds using fluted plastic blanks of 3/16 or less. Stay Tabs” assure sign stays securely in place. No maintenance as these are all plastic, use indoors and out. No tape, Velcro, or screws needed eliminates fastener damage to signs. Internally weight with sand ballasting columns, add sand to each leg. Hinges lock in open position to prevent over-extended sign faces Outside Dimensions: 46.373″H x 27.125″W Recessed Sign Area: 35.125″H x 24.5″W Closed Thickness: 3.125 Weight: 20 lbs.