Size: 100pcs bobo balloons, Diameter 2 inches before inflation , diameter 2 to 5 inches after inflation, 5 inches is the maximum inflation size , it is recommended to inflate the balloons up to 3 to 4 inches in diameter to avoid explode. High Quality Material: The TPU material of our bobo balloons is very strong and will not break when you inflate it or hang it from the ceiling during your party. They're also durable and can stay inflated for up to a week. Diy Party Balloons: You can add feathers, confetti, LED lights or ribbons to create unique balloon decorations. Create any theme you want to dress up your party. Applications: These clear pop balloons are widely used as birthday balloons, Christmas balloons, bachelorette party games, large transparent balloons for balloon filling, Christmas decorations, wedding supplies decoration and more celebrations. Operation steps: 1. Please stretch the balloon forcefully in the horizontal and vertical directions before inflating, 2. Use a good quality manual balloon pump. 3 Pinch the balloon tightly enough when inflating. 4. After inflating, tie a knot and tighten the knot to make it tight enough. Product Details Material: TPU Size: 5 Inch 100pcs Color: ClearHow to Use1. Prepare a bobo balloon. The un-inflated balloon is small, but it becomes enormous after inflation.2. Pinch the edge of the balloon and stretch it hard twice in the horizontal and vertical directions.3. Level out and unfold the stretched bobo balloon.4. Use a helium tank or pump to inflate the bobo balloon through the inlet.5. When adding gas to the smallest marked size, slow down inflation, and then add the appropriate amount of gas until it reaches the appropriate size.6. When the wrinkles at the sides are completely unfolded, gently press down 1cm using your hand for the best effect.7. Start twisting downwards at a distance of 2 cm from the inlet.8. Tie one knot at the inlet, or tie two knots at the upper and lower parts with a string.9. Optimal inflation range.NotesIn order to rise, the balloon must be filled with helium. The bobo balloon uses imported TPU material featuring high transparency and elasticity. You can add a small amount of gas to it first, then fill it with feathers,paper scraps, color films,or smaller.balloons, etc. Afterwards, continue to inflate it until wrinkles disappear.A better inflation affect can be achieved below 28C.WarningChoking hazard Small parts.Not for children under 3 years.Package Contents100Pcs Bobo Balloons Kit