The Phenom Professional Two Stage Isolator 1.75 " Inch Diameter Two Valve Penis & Ball Vacuum Cylinder Features 2 Separate Chambers with Female Connector For Hand Pump Systems - No Pills, Safe & Natural

this is a rip off the biggest peace of junk I ever bought, You should cancel this line of products before any one else gets taken for 175 bucks!!!!!!!!!!!!!!!!!!! I also bought a different model from these jerks for 90bucks that also turned out to a peace of crap as well ,the vales do not work proper and they do not stand behind anything that they sell. you should warn people so they won't lose there money as I have.David crooker

The negative comments are somewhat understandable considering that there are no "operation instructions". There is a definite learning curve to this product. In lieu of instructions the alternative is patience. It is well worth it if you keep after it. I don't have time to go into the subject in this forum at this time. I have a gmail account. By the way I've had the thing for about two years.

This is garbage don't buy it