These fun toys are the perfect for party favor kits if you are throwing a racing themed birthday. The Balloon Racers are colorful toy cars that have a balloon attached to the end of it. Balloon power is what makes this 6-inch car whistle and zoom! It makes a great propulsion principle toy. Includes two balloons and decals for decorating and plastic racer car. Packaged in a polybag, this makes an excellent stocking stuffer or fun classroom toy.