Jumbo 90cm balloons are just about the biggest balloons you can buy. They make beautiful party decorations and eye-catching displays. You can use them in photos, as decorations, behind tables as a backdrop and they even look great just on their own as well. We have outlined the best tips and tricks for you to fill your balloons at home with either helium or air. Balloons are super versatile and can be used in many interesting ways to give your party the perfect look.