It depends on what you mean by \"work.\" Vacuum devices certainly work in that they draw blood into the shaft of the penis, causing for it to become
Erect and with sufficient time and pressure it will expand beyond it\'s regular dimensions. But I suspect you are asking if it works in terms of making permanent size gains. I\'d say for most people the answer to that is \"no\", but there are those who do report permanent or long terms gains. It\'s the same with
Jelqing,
Clamping and stretching etc, in that everyone responds differently.