Celebrate a big milestone 40th birthday with a big number balloon. Oh No the Big 40 Number Balloons is an extra-large foil balloon shaped like the number 40, finished with sparkling prismatic silver, and printed with a fun 40th birthday message. Big 40 Number Balloons measures 27in high x 21in wide. Note: Balloons arrives uninflated. To inflate it with helium please visit your closest Wanna Party store or contact any helium gas provider near you. Filling charges are extra.