My friend has used similar device and reported significant enlargement. HOWEVER all the similar products here seem to be too small for me. This one is big enough, very big. The tube and the pump are decent quality, but the silicone ring in the bottom
Had only a 18 cm length and 5.5 in diameter pump in which my "pride and joy" unfortunately quickly anywhere "triggered" is. This pump, which keeps the vacuum perfectly (even with normal walking), he can finally expand in any direction.
