Do you want to send your 21st birthday wishes to a friend or relative? Just order our "21st Shining Star Blue Balloon" and sit back, while we deliver your personalised birthday wishes in style. Perfect to get the celebrations started, this 45 cm (18") balloon has a light blue background with a large dark blue star in the centre. It features the number 21 in large white letters and is decorated with small colourful stars, streamers and confetti.