For a fun gift to surprise a birthday boy, why not send him this huge 'Birthday Boy Party Hat Balloon'? A tried and tested gift, this 55 cm (22") Bubbles balloon is a large stretchable plastic helium balloon with smooth seams like a beach ball. It shows the greeting "Birthday Boy" on a transparent background decorated with colourful streamers, stars and balloons. This long lasting helium balloon will stay inflated for up to four weeks and is made from non-allergenic material - making it ideal for hospital deliveries.