You mean PeeTube? PeeTube is also the name of the astronaut pee device based pee device that doesn’t need video to measure your penis length. Simply insert your penis into the spring loaded tube (it’s just a tube with lots of springs in it). As your penis skin touches the springs, the penis length is measured. The current model is a 256SpT (Springs per Tube), which allows for a penis length resolution in 12"/256 increments.