Our Premium-Quality Mylar Balloons will "lift spirits" at every celebration! Choose from a wide variety of Shapes & Sizes. Contains: Happy Birthday 60 Burst Balloon (18 Inch Mylar) Pkg/1 (uninflated) Warning: Choking Hazard - Children under 3 years can choke or suffocate on uninflated or broken balloons. Adult supervision required. Keep uninflated balloons from children. Discard broken balloons at once.