One 18 inch Monster Truck Square Foil Balloon. Mix this Monster Truck Square Foil Balloon with some of our coordinating solid color latex balloons to create a cool balloon bouquet. Place it on the birthday boys chair, on the party table, or anywhere that needs a little more decoration. Our Monster Truck Square Foil Balloon can also be saved as a keepsake when the party is over. Be sure to check out all of our awesome Monster Truck Birthday Supplies for a fantastic party.