Best Balloons & Banners — 31in (2026)
1 balloons & banners matching size “31in”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Balloons & Banners UK (2026) guide.
These 31 inch Balloons & Banners are perfect for adding a festive touch to your celebrations. This set includes a selection of vibrant balloons and coordinating banners, ideal for birthdays, parties or seasonal decorations. The balloons are made from high-quality latex and offer excellent colour retention, whilst the banners are printed on durable material ensuring long-lasting use.
The included banner designs range from classic birthday messages to festive seasonal greetings – offering versatility for various occasions. This selection provides a balanced mix of balloon types and banner sizes, perfect for creating a visually appealing display. These decorations will instantly elevate any event.
Measuring 31 inches in size, these balloons are ideal for larger spaces or creating impressive focal points. They’re easy to inflate (helium recommended) and can be strung up from ceilings, doorways, or walls. This set delivers immediate impact, transforming your space into a celebratory haven.
#1 Pick
Number 40 Birthday Balloon 31 Inch, Black & Gold Holographic Foil, Large Helium or Air Fill Party Decoration for 40th Milestone Birthday Celebration- Black/Gold
- 31in
£4.74
Pros
- 31 inch size makes a bold milestone-birthday centrepiece
- Black and gold holographic finish suits adult parties
- Works with helium float or air-fill display
Cons
- Single number, needs a second balloon for two-digit ages
FAQ
What type of inflation is recommended for the balloons?+
For optimal floatation, we recommend inflating these balloons with helium. If you're using air, they will still provide visual interest but won’t lift as easily.
Are the banners weatherproof?+
The banner material is water-resistant but not fully waterproof. We advise keeping them out of direct rain and prolonged exposure to damp conditions for best results.
What colours are included in the balloon selection?+
This set typically includes a mix of primary and secondary colours – reds, blues, yellows, greens, and pinks. The exact colour distribution may vary slightly.
How do I hang the banners effectively?+
Use strong tape or hooks to secure the banner loops to ceilings, walls, or furniture. Ensure the surface is clean before attaching for a better hold.
Are the balloons suitable for small children?+
While generally safe, supervise young children when they are playing with balloons due to the risk of choking hazards. Deflated balloons should be kept out of reach.
Can I use these balloons indoors?+
Yes, you can absolutely use these balloons indoors! They’re perfect for decorating a party room or adding a festive touch to your home.
What is the banner material made of?+
The banners are printed on a polyester blend fabric. This material is durable and designed to withstand multiple uses, but it's not suitable for outdoor use in heavy rain.
Do I need to purchase a helium tank separately?+
Yes, you will need to purchase a helium tank separately if you wish to inflate the balloons with helium. Tank sizes vary – ensure you select one appropriate for the number of balloons you intend to fill.
Are there any assembly instructions included?+
No assembly is required; this set arrives ready to use. Simply inflate the balloons and hang the banners as desired.
What’s the typical lifespan of a helium-filled balloon?+
Helium-filled balloons typically float for 12-24 hours, depending on factors such as temperature, air leaks, and the size of the balloon. Consider using anti-pop solutions to extend their float time.