P is for Party! Get set for a big party with these Letter P Silver Megaloon Foil Balloon. Great for spelling out a message of congratulations with the rest of our letter balloon range. The letter measures 100cm tall and can be filled with helium or air. Item Includes: Balloon. Fit and Sizing: 100cm / 41in in height. Fabrics and Care: Foil. Please note: Self sealing balloon, can be filled with air or helium.