I suppose you could say it works, but so will a regular pump.The head pump functioned as designed, but the results were substantially different than I anticipated. Given the variety of items available here on Eden Fantasys, this $22.99 would be better spent towards anything else.
I was able to achieve the same, maybe even better, results using a regular pump with my hand in place to stop any "shaft creep".
I'm not giving up on this quite yet. I'll continue to attempt to use in the event that it's user error, but not holding my breath.
Release valve stays with the receiver when hose is detached.
Metal spring inside pump mechanism.
For the uninitiated, vacuum pumps all work under the same principle---removing air to increase blood flow to specific area. Typical uses include addressing ED (with placement of a cock ring post-pump) and pleasure.
Some claim permanent size improvements, I'm not one of them. I liken it more to going to the gym to work any other muscle or running to maintain the vascular system. What I've noticed as a regular pumper (usually sustained 20-30 mins daily), is when I do get hard from stimulation, my girth is consistently more than before I was pumping. My initial reason to get into pumping was to exercise my member. As a smoker (soon to be ex), I'm well aware of circulation issues that arise from smoking and wanted a way to keep circulation there intact. I do enjoy pumping---the feel of my cock in my hand post pump is somehow rewarding and my partners most certainly notice a difference when it comes time to tango.
With standard penis pumps, there are several basic elements. Here's a breakdown of the terminology I use:
Receiver: This is the "tube" portion of the pump, usually referred to as the cylinder in product specs. This is typically some sort of hard acrylic material.
Sleeve: This is the typically silicone or latex piece that fits over the end of the receiver. It can vary in length, which determines how much of the penis will be subjected to increased blood flow. A long sleeve may only subject the upper half, where a short sleeve may subject the entire shaft.
Release Valve: All pumps have some sort of release valve. This valve will allow air back into the receiver, thus releasing the pressure.
Pump: This is the mechanism for drawing the air out of the receiver. The 3 basic options are Bulb (like a blood pressure sleeve), Pistol (two levers squeezed, between palm and fingers that ultimately pull a piston), and Finger Piston (sometimes referred to as a "T").
The finger-piston/T pump mechanism is comfortable in the hand. It's a pretty basic internal design utilizing a single spring. If used in wet situations, that could be a problem---but as someone who regularly pumps in the tub and shower, I wouldn't anticipate it. Just don't submerge the piston.
The 1" diameter sleeve is pretty standard and it's pliable enough accommodate someone a little bigger.
I usually detach the hose from the cylinder when storing my pumps. This one is no different.
I thought perhaps I was letting the pump ride a little too far down the shaft, so I held myself behind the pump to essentially create a "stop", so the pump wouldn't ride down any further. Still no luck. I definitely didn't feel that intense sucking sensation typical with standard pumps.
I think the head doesn't engorge as I expected, as what happens to the shaft when pumping. Perhaps more head-pumping experienced folks could shed some additional light on this.