This Batman birthday card reads on the front "Na Na Na Na Na Na Birthday!" An image of Batman running is printed on the cover. There is plenty of space on the inside for your own personal message. Dimensions- 8 x 5"License - Batman Danilo is the leading publisher of licensed calendars, diaries, greeting cards, gift wrap and gift bags in the UK. We are a family run company thatâ€™s been operating for more than 40 years. Our licenses range from pre-school to adult. All the paper we use is responsibly resourced and we only work with suppliers and manufacturers that meet our stringent ethical requirements.