These sparkle and swirl balloons are a perfect choice for any celebratory occasion including new year and big birthdays! Each balloon features a stunning all over print design set against an assortment of black or gold backgrounds that will easily compliment a whole mix of matching colour balloons, enabling you to create stunning bouquets and decorative displays in an instant!sparkles swirls gold and black qualatex latex balloons assorted 11 pack of 10suitable for inflation with air or helium. To inflate with helium, you will need to purchase a helium cylinder for 30 balloons or helium cylinder for 50 balloons. Many florists also offer an inflation service for a small fee.