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Pump your way to a bigger penis and enhanced pleasure with this Rock Hard Penis Pump by CHISA.

Get the size and confidence you’ve always dreamt about as you watch your cock grow bigger and thicker than ever before. By surrounding your entire shaft with direct vacuum suction, the Rock Hard Enlargement Pump feels great and increases your size! The super-soft, comfortable silicone sleeve wraps tightly around you, forming a perfect seal around the base of your cock to create a super-strong vacuum that produces maximum results. With each pull of the EZ-Grip pump trigger, the Large Penis Enlargement Pump creates blowjob-like suction and delivers rock-hard erections that last and last.

The EZ-Grip pump trigger also fits comfortably in your hand and allows you to operate it single handed, leaving your other hand free for extra stimulation. The clear vacuum tube allows you to watch your cock grow, and measure your results. Simply press the quick-release button to instantly release the vacuum pressure. To prolong ejaculation, slide the included enhancement ring over your shaft. The tight squeeze will prolong ejaculation, help maintain your erection, and extend the fun. When you’re done, simply detach the cylinder from the vacuum hose and clean it with toy cleaner and warm water.

Key features of the Rock Hard Penis Pump

  • Silicone entrance provides a comfortable, air-tight seal
  • Cylinder marked with ruler so you can measure your progress
  • Increases your penis length, girth & staying power
  • Clear chamber allows you to keep an eye on your size as you pump
  • Soft & flexible PVC seal creates an airtight vacuum
  • Ergonomically designed trigger handle
  • Quick-release valve for instant pressure relief & enjoyment
  • Measurements: Length 21.50cm * Width 6cm
  • Material: ABS and TPE
  • Includes a free jelly cock ring

How to use the Rock Hard Penis Pump

  1. Attach the rubber mouth around the large end of the transparent Tube.
  2. Connect the air bulb and hose kit to the opposite end of the transparent penis tube nipple.
  3. Push the center rubber ring in to make it recessed and flat. Apply a small amount of lubricant on the rubber ring’s center rim to allow easy entrance for the penis.
  4. Position the head of the penis against the center rubber ring and hold the penis tube firmly with one hand, while beginning to pump with the other hand.
  5. Pull the pumper handle to pump the air out from the tube, thereby creating suction. Push the air release valve when the penis is enlarges by 3cm (use the measurement scale on the transparent tube), or when no further air can be pumped out of the tube.
    Repeat this procedure for 10 minutes once a day, three times a week.


Should the penis curve downward and touch the tube, apply some lubricant on the tube rim to eliminate friction.
Record the size of your penis before initial usage, and measure again every two weeks.

How to Take Good Care of Your Penis Pump

Care for this item by performing a thorough wash when play is over. Wash in warm, soapy water or with your preferred toy cleaner as per the provided instructions. Once done, dry the surface completely and store separately, in a cool, dark and dry place when not in use.

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Rock Hard Penis Pump
Rock Hard Penis Pump