Shine bright like a diamond with our Diamondz Party Time Birthday Balloon! This super special balloon isn't your average party decoration: it's cone-shaped! With bright geometric designs, this foil balloon's "Party Time" and "Happy Birthday" headlines really stand out. Balloon comes with easy instructions and an inflation gauge. Self-sealing, helium-quality Diamondz Party Time Birthday Balloon measures 15in wide x 17in tall when inflated.