70s Retro Rainbow Birthday Card 70s Retro Rainbow Birthday Card 70s Retro Rainbow Birthday Card £3.95 Notes: Notes 1000 characters left. Quantity: at £3.95 each Add To Basket A personalised birthday card from our BRAND NEW Retro Range! Description: The card itself is 6 x 6 inches square. Matt white, 300gsm thick cardstock. Comes with a plain white envelope. Printed in high quality ink on the front page. The inside of the card is blank. Card and envelope are both eco friendly - they are both fully recyclable. We have taken the Naked Card Pledge and do not use cellophane wrappers to reduce ours and your plastic waste. Posted in a hardbacked, 'do not bend' envelope. How to personalise: Please add the name and year required to the notes box.