Description Construction balloons are mainly made of aluminium foil, safe and reliable to use. These construction birthday party balloons are perfect decoration for kids boy birthday party, construction themed party, children party, festival, celebration and much more. Features -Color:As Shown -Material:Aluminum foil -Size:80.00X62.00X0.30cm/31.44X24.37X0.12in - These balloons feature construction theme appearance, with different style, look lovely and charming. - Construction birthday party supplies will make your kids feel the atmosphere of a real architectural area during the party. - Lovely color and shape, construction theme balloons will decorate your party more beautiful and charming. - Beautiful balloons decorations, wonderfully light up party atmosphere, bring more joy, add more fun to your party. - Our construction balloons are easy and convenient to inflate and deflate, uniform in color, safe and reliable.