The Penis Pump uses air to increase the size of your penis. It has a bulb and cylinder connected by a thin rubber tube. The cylinder is attached to a lubricated sleeve. Place this sleeve over your penis then steadily pump the bulb by hand. When the bulb is pumped, air is pulled out of the cylinder, creating a vacuum. This vacuum helps draw more blood into the penis, strengthening its tissue, which will cause an erection. The vacuum allows for an expansion of the tissue and results in an increase in penis size.

Summary

 ~Help erectile effect: purely physical help erection, safe, secure Exquisite workmanship and durable. 

~Triple shrink-rings are distributed in varying sizes,so you have no need to worry about the size 

~Penis can be exercised under vacuum pressure,which can help take precautions against premature ejaculations and impotence 

~It can effectively make the penis thicker and longer 

~Vacuum physical helping erection has no damage or side effect on body