Review on 🎈 Colorful LED Light Up BoBo Balloons: 10 PCS, 3 Levels Flashing LED String Lights, 20 Inches Bubble Balloons Helium Style - Perfect for Christma/Birthday/Wedding Party Decoration by Kerry Johnson

These balloons are colourless/transparent helium balloons with a very large 'lip' which needs to be rolled up and knotted several times to keep the helium inside the balloon. We found this difficult and that the balloons did not stay inflated. We have used helium tanks and many types of helium balloons for decades and it was too difficult to order them again. Also, the lights are just your typical tiny LED string, using two double AA batteries (not included) for power! So the battery compartment stresses the cord to the point where there isn't enough helium to lift the balloon unless it's fully inflated. And as mentioned above, helium is quickly deflated from the balloon's uncomfortable neck. burn, they're just poorly designed. In order to improve this product, the batteries need to be light and the bottle neck needs to be redesigned to prevent leakage.