Balloon Happy Birthday Card Balloon Happy Birthday Card Balloon Happy Birthday Card Floating balloons against a sky background with white fluffy clouds, square 14.8cm card £2.99 Quantity: at £2.99 each Add To Basket 8 in stock. A 14.8cm square greetings card printed on thick (300gsm) white card and with a high quality white laid-paper envelope. Blank on the inside for your own message. All of my cards are designed by me from hand-drawn motifs, and are printed in the UK. Posted in a hardback envelope within 2 working days. 2nd class postage is free, or upgrade to first class for an additional 50p at checkout.