ThisÂ Flintstones BirthdayÂ Day card reads on the front "YABBA-DABBA DOO!" Included on the cover is an image of Fred Flintstone. There is space on the inside for your own personal message.Dimensions - 7" X 5"License -Â Warner Bros Danilo is the leading publisher of licensed calendars, diaries, greeting cards, gift wrap and gift bags in the UK. We are a 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.