The Inflation Laboratory - Valora Blows a Spanish 30-inch Paddle Balloon (MP4)

Dr. Valora has also been sent a couple of Globolandia (Murcia, Spain) model 200 80cm (31-inch) balloons for testing. She wants to get a feel for them by blowing first, but knows she may eventually need to switch to the bellows pump if they grow too much beyond their nominal size. I think it's safe to say that she is surprised by just how far they grow beyond nominal dimensions!