A Great New Way to Fly Balloons without using Helium! This reusable, unique plastic & flexible fiberglass invention allows balloons filled with only air to fly at the same height of 36 1/2". Think of the money and hassles you will save by eliminating the use of helium. Designed for different balloon sizes, 17" or 20" balloons are recommended. Not to be used with our MW524 Reusable Balloons. Pole & balloon cup are 36 1/2" tall. The Balloon Holder attaches to a vehicle's window via a window clip. One piece design.