Cheap Helium Balloons By Post

Beautiful & Affordable Balloon In A Box Gifts

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Cheap Helium Balloons Delivered UK

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Checkout The Superb Range Of Cheap Helium Balloons by Post Delivery Service

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Best Helium Filled Balloons 

– Just £14.99

See it float out of the box!

Beautiful Inflated Helium Balloons Delivered Anywhere in the UK

Get Well Smiles Balloon
Send your get well soon wishes with this cute smiley face helium balloon gift.

Birthday Balloon Surprise
Make their day really special with this fun shaped ‘Happy Birthday’ helium balloon.

Butterfly Birthday Balloon
Make a birthday extra special with this butterfly design helium balloon.

Smiley Surprise Balloon
Send a smiley helium balloon today and show how much you care.

Emoji Hearts Balloon
An 18 inch heart shaped helium balloon with fun emoji design.

Get Well Soon Balloon
Cheer someone up with this fun 18 inch helium balloon.

Sorry You’re Leaving Balloon
This fun ‘Sorry You’re Leaving’ balloon will make a great parting gift.

I Love You Balloon
Let that special someone know how you feel with this heart shaped helium balloon.

Happy Retirement Ballloon
Send your best wishes for a happy retirement with this fun 18″ helium balloon in a box.

Thinking of You Flowers Balloon
A lovely thinking of you balloon with flower design to show them how much you care.

Good Luck Smiles Balloon
Wish someone good luck for an upcoming event with this fun smiley face balloon.

Monkey Get Well Balloon
Send your get well soon wishes with this fun helium balloon with monkey design.

Wedding Day Balloon
Send your wedding day congratulations and well wishes with this celebration balloon.

Engagement Balloon
Congratulate a newly engaged couple with this celebratory balloon.

Baby Girl Balloon
Celebrate the arrival of a baby girl with with this cute 18″ balloon.

50th Anniversary Balloon
Send your greetings for a 50th anniversary with this helium balloon in a box.

Happy Engagement Balloon
Send congratulations to someone newly engaged with this fun 17″ helium balloon.

New Baby Boy Balloon
Welcome the new arrival with this ready inflated baby boy balloon!

18th Birthday Balloon
Perfect for an 18th birthday! 17″ Helium Balloon.

21st Birthday Balloon
Perfect gift for a 21st birthday! 17″ Helium Balloon

Anniversary, Birthday, Celebration, Congratulations, Engagement, Get Well, Good Luck, Graduation, Leaving, New Baby Balloon, Retirement, Romantic, Thank You, Thinking Of You, Wedding, Well Done Helium Balloons Delivered

How helium balloons work…

Helium balloons work by the law of buoyancy. In this case, the helium balloon that you hold by a string is floating in a “pool” of air (when you stand underwater at the bottom of a swimming pool, you are standing in a “pool of water” maybe 10 feet deep — when you stand in an open field you are standing at the bottom of a “pool of air” that is many miles deep). The helium balloon displaces an amount of air (just like the empty bottle displaces an amount of water). As long as the helium plus the balloon is lighter than the air it displaces, the balloon will float in the air.

It turns out that helium is a lot lighter than air. The difference is not as great as it is between water and air (a litre of water weighs about 1,000 grams, while a liter of air weighs about 1 gram), but it is significant. Helium weighs 0.1785 grams per liter. Nitrogen weighs 1.2506 grams per liter, and since nitrogen makes up about 80 percent of the air we breathe, 1.25 grams is a good approximation for the weight of a liter of air.

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