Penis pump Pump Vision by BlueJunker is ideal for developing the penis and has a graduated cylinder and a manometer to observe results.
This developer is fitted with a release valve.
Note that using a penis pump won't do anything to increase penis size.
Tube length: 20 cm
Diameter of the tube: 7 cm
Material: Silicone and TPR
Phthalate-free
Pump Vision by BlueJunker