Qualatex Round Latex Giant Balloon (Pack of 2), 3', Onyx Black Sold by set of 2 Material: Latex Fill with helium, caution with overfilling; Note: On hot days or in direct sunlight, our huge balloons may pop if overfilled 36" Diameter Perfect statement decoration; Great for birthdays, baby showers, bridal showers, weddings, summer parties and more Koyal Wholesale. Original design by Koyal Wholesale . All rights reserved.