5 and 8 year olds were able to make their own water balloons.

• How accurate was the sizing? accurate
• Please tell us about the quality of the product. average
• Was the product free of any manufacturer defects? yes

This little device has certainly saved my fingers. It's simple to twist and knot but not quite as easy as the video shows. I found that it works best if you don't overfill the tiny balloons. Overall, we're very pleased!