These balloon valves (also called heli-valves) are a great time saving solution when inflating large numbers of latex balloons, particularly for gveaways. Prior to inflation, the valves are inserted into the neck of the balloon, then you simply inflate and pull down the pre-attached ribbon - no need for tying ribbon or knots! Valves should never be used for balloon releases. You can buy them loose to fit yourself, or if you are also buying your balloons from us we can fit them for a small charge.