Anna and Lana are both new to the Lab, and after some initial tension get down to the business of stretching their faces and blowing as hard as they can. In the process, they evaluate three different mouthpieces for subsequent blowing tasks.

Anna and Lana are both new to the Lab, and after some initial tension get down to the business of stretching their faces and blowing as hard as they can. In the process, they evaluate three different mouthpieces for subsequent blowing tasks.