- Made of high quality aluminum foil balloons and auto-seal.
- Measurement about 16 inches of birthday foil balloon, includes 13 independent alphabet letters, can be freely taped to the wall.
- Perfect for decorating the babies, kids, adults birthday party with this lovely “HAPPY BIRTHDAY” mylar letter balloons
- Please inflate the gas slowly until 90% filled and keep away from fire, because of the thermal expansion(the inflate pump are NOT INCLUDED)
- Note:This Happy birthday banner balloons were not attached to each other and CAN NOT FLOAT both with helium and air. You can tape it to the wall or hang with string