11" Simplement Hip Hip Hourra Pastel Assortment (50pcs) Balloons in green, yellow, blue, purple, and orange. Hip Hip Hooray in French. These balloons will suit spring and summer colour themes, and also work well for celebrations such as birthdays, anniversaries, congratulations, stags, bridal showers, weddings, quinceaneras, gender reveals, and more. Easy inflation with helium, or air (via an electric pump or hand pump). If using helium, hi-float can be injected before inflating for much longer float times. Works well in balloon arrangements, balloon bouquets, balloon columns, and other balloon decorations.