Jenny Tests Her Blowing Pressure (MP4 - 1080p)
Price: $9.99
Length: 9 minutes
Size: 2.09 GB
Format: mp4
Resolution: 1920x1080
Added: 12/21/18 10:47 PM
Jenny tests her blowing pressure with the lip ring spirometer, and the tuba mouthpiece. How hard can she push her breath against the closed tube? How big and shiny can her cheeks get? Does that hurt? Which mouthpiece works better?