Our most popular foil balloon choice, 18" round custom printed balloons are suitable for almost every event and organisation who want to make a big impact! These balloons come in a great range of colours, have a self-sealing valve to avoid having to tie knots and will float for at least 3-5 days (usually longer!) when inflated with helium. We also have a full range of ribbons, weights and helium cylinders available in our Accessories section to complement your order.