Extend the floating time of your balloons with the Hi-Float Ultra balloon gel in the 0.7L bottle . A latex balloon with a diameter of 30cm floats for up to 3 days longer. The contents of the bottle are enough for approx. 150 latex balloons with a size of 30cm. To do this, simply massage a small amount of the gel into the balloon and then fill it with helium as normal. Tip: You can also get a pump dispenser for easier filling in our shop.