This is a two chamber pump with two vacuum valves. Its purpose is to enlarge the dick as well as the balls at the same time. The double chamber allows you to keep two separate pressure levels, one for your dick and one for your sac.
This is a two chamber pump with two vacuum valves. Its purpose is to enlarge the dick as well as the balls at the same time. The double chamber allows you to keep two separate pressure levels, one for your dick and one for your sac.