Anagram, Happy Birthday Balloon 8pc Set, New, Essentials to any party colourful and fun, 8 standard size balloons with 1 Holographic. Essentials to any party colourful and fun, 8 standard size balloons with 1 Holographic. CHOKING HAZARD: Children under 8 yrs. can choke or suffocate on uninflated or broken balloons. Adult supervision required. Keep uninflated balloons from children. Discard broken balloons at once.