Using these balloons is a breeze! You can inflate them with air using a regular balloon pump or with helium from a helium tank. If you want them to float, fill them with helium. Just note that the floating time is around 12 - 18 hours. When it comes to storage, keep them in a cool, dry place away from sharp objects to avoid punctures. And remember, this listing only includes the balloons, so don't expect any other decorations. Enjoy using these eco - friendly balloons for your special events!