Rocket Balloon Refills - QTY 30

My kids launched these non-stop at the birthday party, and the thin rubber really does stretch easily without popping. Each pack gave us plenty of flight time before they needed a new one.

These refill balloons stretched and inflated without a single weak spot, and the whole pack lasted through two full birthday party rounds. My kids launched them over and over until the rubber finally gave out, which took some serious abuse.

I was worried the kids would lose interest quickly, but these refills kept them launching for nearly an hour. The rubber is a good thickness and the 30-pack means we didn't run out mid-party. Only wish the neck was a tiny bit stretchier for easier tying.