Pump Worx Deluxe Sure Grip Pump Black. Discover thick, throbbing erections that last and last with this professional grade Deluxe Sure Grip Power Pump. Developed as a safe, affordable, non-surgical alternative to expensive medical procedures and pills, this manual pump is the easy way to instantly enlarge your penis without any negative side effects. With each push of the EZ Grip pump trigger, a super strong vacuum is created inside the chamber, forcing your erection to quickly expand its length and girth. Once you penetrate the smooth, flexible silicone opening, you will quickly discover throbbing, rock hard erections that feel great and swell with power! When you have reached your desired size, simply push the blue quick release button to instantly relieve the pressure.