Air-filled balloons on frames are best for outdoor events. Because these Lollipop topiary balloons are air-filled, the heat does not expand the balloons, as helium would. The satin-wrapped pole keeps the decor ridgid, so it's not flip-flopping and hitting the grass. Only the ribbons sway in the breeze. We can make them up to 10 feet tall. Also, it is best to choose lighter colors. These must be installed in grass or dirt.