Custom, Fun & Cool {XXL Massive Huge Size 18" - 36" Inch} 5 Pack of Helium & Air Mylar Aluminium Foil Balloons w/ Graduation & Stars Design Variety Assorted Multicolor in Black, Silver & Gold] MATERIALS: This item is only made of the best and highest quality materials available to the manufacturer. WARRANTY: These products have a lifetime warranty that is guaranteed by the manufacturer. This means that if the products come with a manufacturer defect upon opening the package you may request replacement from the manufacturer.