• This is a double sided matte paper made by government postcard • Write on white areas with ballpoint pens or pencils • This postcard is 3.9 x 5.8 x 0.1 inches (100 x 148 x 0.33 mm) thicker than 0.01 inch (0.33 mm) than 0.009 inch (0.23 mm) government postcards) • The back has a square shape for sticking stamps and a postcard in the middle of the top • On the reverse side is the author's name in the photo in Roman letters