Here's the way to make a simple thing even easier. Just insert these valves into the neck of your balloon, blow up using a standard helium inflator and it inflates and self-seals the balloons in seconds. It allows helium to go into the balloon but not to escape. Plus, the ribbon is already on the balloon! Everything is ready to go in a jiffy! If you need to purchase a helium valve inflator for your helium tank, contact customer service for information.