Used it once at an event! I used a pump to inflate it, and a straw to deflate it. It was big, looked great in photos, and was cute. Balloon Number Birthday Decoration Balloons with Crown 40 inches Large Straw Included Number Balloon Approximately 90cm Anniversary (Crown Black, 1) - Color: Black - Size: Approximately 90cm - Design: Number 1 with Crown - Notes: Shipped folded - Uses: Birthday party decorations Thank you for viewing.