Using these balloons is a breeze. You can fill them with air using a balloon pump, water from a tap, or helium from a helium tank. For the best look, inflate them to a nice round shape. When using them for decoration, you can tie them together in clusters and hang them up. Now, here are some important things to remember. Keep these balloons away from children under 8 years old because they can be a choking hazard if they're uninflated or broken. If a balloon breaks, throw it away right away. Also, make sure an adult is around when kids are playing with the balloons. As for maintenance, store the uninflated balloons in a cool, dry place. This will help keep them in good condition for your next event.