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11 Balloon Number Birthday, Giant Navy Blue Number 1 & 1 Helium Foil Balloon for Boys 11th Birthday, Dark Royal Blue 40'' Self Inflating Mylar 11 Balloon for Men Anniversary Party Decorations Supplies
✅ In stock
F
Grade
Analysis Confidence
100%
Price verified Sep 30, 2026 12:52 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price sits right around what this item typically fetches.
- 🏷️The retail sticker price has been slashed by 63% — a steep markdown from the official listing.
- 📉This is the most affordable price seen in roughly three months — a solid near-term opportunity.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
11.17/20
Deal Strength
7/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
KOOKOOG
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Navy Blue Number 11 Balloon 40 Inch: Includes 1pc 11 balloon and a straw for easy inflation and deflation. This helium balloon is perfect for birthdays, anniversaries, or special occasions like a 11st celebration
✓Large Size & Reusable: Our blue 40" mylar number 11 balloon is crafted from high-quality aluminum foil, ensuring long-lasting use. Safe, non-toxic, and reusable. The number foil balloons are perfect for birthdays, anniversaries, and special events. Simply fill the foil balloons to 90% capacity for full expansion
✓Easy to Inflate: Our dark blue large number 11 foil balloons come with a convenient self-sealing valve, allowing for quick inflation with air or helium. When filled with helium, the balloons can float in the air; after filling, press the valve of the digital balloon to seal it. Reusable and easy to deflate with a straw, these balloons are perfect for multiple celebrations
✓Perfect Party Decorations: These large shiny number 11 mylar foil balloons add a stylish touch to birthday, anniversary, graduation, pool party, wedding, baby shower, and holidays like New Year's, Halloween, and Christmas. Ideal as a backdrop or photo prop, they bring charm to events for men, women boys and girls
✓Usage Tips: Due to the thermal expansion properties of foil, temperature changes may cause balloons to deflate. Simply use the included straw to reinflate if needed. For best results, keep balloons away from extreme heat, cold, and sharp objects. Please note, color may vary slightly due to lighting and screen settings
⚙️ Specifications
Occasion
Birthday
Color
Dark Blue
Included Components
Straw
Theme
Number
Material
Aluminum
Unit Count
1 Count
Size
40 Inch Number 11
Brand
KAINSY
CPSIA Cautionary Statement
Choking Hazard - Balloon
Special Feature
Reusable, Self Sealing
Package Dimensions
7.52 x 5.35 x 0.39 inches
