Using these balloons is easy. If you want them to float, fill them with helium. Make sure to do this close to the start of your event to enjoy their floating effect for about 10 hours. If you don't need them to float, just fill them with air, and they'll stay inflated for 5 - 7 days. When handling the balloons, be gentle as latex can be easily punctured. Store them in a cool, dry place away from sharp objects to keep them in good condition.