The Bathmate Hydromax 7 is the next generation from the original Bathmate Hercules Hydromax-- providing about 35% more suction than the original.

Penis pumps can be used to temporarily increase the size or firmness of erection, as well as being a drug-free aid in achieving erection for those with erectile difficulties.

Because they utilize warm water instead of air, many people find Bathmate Hydropumps to be a more comfortable and effective pumping option. Using warm water in the pump helps increase circulation and tissue elasticity during the pumping process.

Also, due to the design of these water pumps, users are less likely to “overpump” with Bathmate pumps, keeping the vaccuum pressure at a lower and healthier level.

The way it works: Simply fill the Hydromax 7 with warm water while in the shower or bathtub. (Whether you are taking a bath or a shower, give yourself 5 minutes to warm up under the water. This helps to heat your body and get the blood circulating.) Once Hydromax is full of water, insert your penis into the Hydromax taking care not to spill too much water. Pull the Hydromax towards your body to create a tight seal (this may take some practice).

Pull the Hydromax towards your body, to expel water from the top of the vessel. As you pump you will feel the suction increase and your penis will be sucked further up into the pump. The Hydromax is designed to slowly release pressure to avoid over suction damage. As the pressure decreases, you can re-pump to re-generate the suction. When done with your session, release the suction that has been created by pressing the release valve in towards the pump.

Available in clear.

Specifications for Hydromax 7 (allowing for penis size gains) when fully compressed:
Maximum erect length: 5-7 inches
Maximum erect penis circumference: up to 6.5 inches (girth as measured around the middle of the shaft)

How to measure your penis:

Length
Measure your erect penis with a ruler pressed lightly onto your pubic bone. You'll find a ruler is easier than a tape measure.

Record the measurement from the pubic bone right up to the tip of your penis.

Girth/circumference
Measure the circumference of your erect penis around the middle of your shaft

You'll find a tailors tape measure is easiest, but a piece of string wrapped round and then measured against a ruler after will do.