7'' latex balloons are a smart and economical idea for a party gift, bonbonier,etc Inflate with air with a simple balloon pump and snap onto a balloon stick. If we inflate with helium, the 7" balloons will float around 3 hours. To inflate, they need 0.05m3 of helium. If we are going to release 7" latex balloons, we make sure they are without any attachment and be individually to minimize the risk of being wound up in power cords. The latex balloons present in this collection are 100% ecological. The colors and other components of the balloons are free of nitrosamine and according to the latest specifications of international regulations.