We ordered balloons ahead of time for our party and were told they only last 6-8hrs, did we want to add on "hi-float" (costs $0.14 extra per balloon) we said no thank you we will just pick them up later. When I got there at the scheduled time it looked like our balloons were already sagging. We had set to pick them up at 3pm because the party was at 5. The balloons must have been filled early in the day because they didn't even last 2 hours. It was sad and not worth the money. Thankfully I kept the receipt from when we pre ordered them the day before too because the cashier that rang us up didn't put our name on the order anywhere.