- 41 cm aluminum number 1 balloon, perfect for decorating birthdays, anniversaries, and special events - Made of durable aluminum material, safe and reusable - Black and white design, easy to combine with other balloons and decorations - Does not require helium, easily inflated with air using a straw or pump - Ideal for children's parties, family gatherings, weddings, baby showers, and graduations - Can be used alone or with other numbers to personalize the celebration - Lightweight product, easy to transport and place in any space - Adds an elegant and modern touch to any festive environment