NISOCY 25-Piece Black Square Foil Balloon Wall Kit – Metallic Double-Sided Party Backdrop for New Year, Birthday, Baby Shower & Graduation
This black square foil balloon wall backdrop from NISOCY gives you 25 double-sided metallic balloons plus two straws for inflation. Each square measures 19 by 19 inches before inflating and shrinks to 13 by 13 inches when filled to the recommended 85% capacity. The mylar material keeps its shape longer than latex and resists leaks and pops, making it a reliable choice for birthday parties, baby showers, graduations, New Year celebrations, and more.
Balloon Dimensions and What's Included
| Pack Contents | 25 square foil balloons + 2 straws |
| Uninflated Size (per balloon) | 19 x 19 inches |
| Inflated Size (per balloon) | 13 x 13 inches |
| Material | Mylar foil, double-sided metallic finish |
| Color | Black (chrome finish) |
| Package Dimensions | 13.8 x 9.8 x 0.6 inches |
How Many Balloons Do I Need for an Arch or Tunnel?
Using 15 square balloons creates an arch roughly 77 inches tall and 52 inches wide. For a tunnel about 65 inches long, you would need 75 balloons (three packs). You can mix and match with latex balloons, flowers, or ribbons to create custom shapes. The metallic surface reflects light softly, adding a charming glow indoors or outdoors.
Can These Balloons Be Reused?
Yes. After your event, separate the balloons and insert a straw into the inflation valve to let the air out. The foil material is sturdy enough to deflate and store flat for future parties, which also cuts down on waste. Just keep them away from sharp objects and do not overinflate beyond 85% to avoid bursting.
Tips for a Smooth Setup
- Inflate each balloon to no more than 85% capacity – overfilling increases the risk of bursting.
- Tie the balloons together with ribbon or string to form arches, tunnels, or wall backdrops.
- Pair with latex balloon kits for varied textures and colors.
- Suitable for both indoor walls, ceilings, floors, and outdoor doorways.
The double-sided black metallic finish means every side looks shiny and bright under party lights. Whether you are celebrating a New Year, birthday, baby shower, graduation, anniversary, wedding, bachelorette, or engagement, this set gives you a reusable, eye-catching backdrop that keeps the festive mood going from start to finish.