How to Inflate Mylar (Foil) Self-Sealing Balloons

1. Locate the Inflation Valve

Find the flat valve located on the “tail” of the balloon.

2. Attach to Pump or Helium Tank

Gently slide the valve onto the nozzle of your air pump or helium tank until it fits securely.No pump at home? You can also use a straw for manual inflation.

3. Start Inflating

Hold the valve firmly and slowly inflate the balloon with air or helium.Inflate gently—do not overfill—to prevent the balloon from bursting.

4. Self-Sealing Feature

Mylar balloons seal automatically.After inflating, remove the nozzle and press the valve flat a few times to ensure it is fully sealed.

5. Decoration Options

With helium: Tie the balloon to a weight to keep it from floating away.

With air: Attach the balloon to walls, backdrops, balloon garlands, arches, or other décor structures.

How to Make Balloons Float

Helium Required:Latex balloons (and foil balloons) must be inflated with helium in order to float.Air-filled balloons will not float.

Attention:helium-filled balloon generally floats for approximately 5 hours in normal indoor temperature conditions. Float time may vary depending on humidity, temperature, and handling.

Package Includes

18″ Metallic Red Heart Foil Balloon × 4

18″ Metallic Pink Heart Foil Balloon × 4

18″ Metallic Rose Gold Heart Foil Balloon × 4

18″ Metallic Red Bow Foil Balloon × 4

18″ Metallic Pink XO Foil Balloon × 8

18″ Metallic Rose Gold XOXO Foil Balloon × 7

1 x 100pcs balloon stickers

1 x ribbon


Romantic Valentine’s Day Balloon Set:Create a dreamy Valentine’s Day backdrop with this premium 45-piece foil balloon set. Includes 15 XOXO letter balloons, 4 red bow balloons, and 11 heart-shaped balloons—perfect for building a charming, love-filled display in minutes
Trendy Designs for Viral Photo Moments:Featuring metallic hearts, elegant bows, and shiny XOXO letters, this set instantly elevates your décor. Capture Instagram-worthy backdrops for Valentine’s Day, Galentine’s brunch, anniversaries, proposals, engagement parties, and bachelorette celebrations.
Easy to Inflate & Display:Each foil balloon includes a self-sealing valve. Inflate using an air pump or helium, tie with ribbon, and hang on walls, windows, dessert tables, or photo corners to create a romantic setting with zero decorating experience required.
Long-Lasting Shine & Premium Quality:Crafted from durable Mylar foil, these balloons hold their shape and metallic sheen for hours. Suitable for both air and helium inflation. Avoid overinflating to prevent bursting and ensure the best display quality.
Perfect for Valentine’s Day, Galentine’s & Bachelorette Parties:Ideal for couples, best friends, brides-to-be, and party hosts looking for a chic and elegant atmosphere. Great for My First Valentine’s Day, engagement parties, birthdays, and festive romantic backdrops to create unforgettable memories.