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First Expansion Cylinder

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First Expansion Cylinder

Availability: In stock

Dr. Joel Kaplan's First Expansion Cylinder is usually the starting point with any pump system.  The purpose of this cylinder is to lengthen and thicken the penis, both in erect and flaccid states. 

Injection Molded
Seamless and Edgeless
Durable One Piece Construction
Custom Fitted
Medical Grade Acrylic
3 Month Warranty

For immediate increase in penis length, penis girth, and scrotal enlargement.

Further Detail and Instruction Below


How to Choose Your Cylinder Size

Measure your penis using the instructions below to select a cylinder that fits properly and provides maximum expansion and comfort.

  • Wrap a string around the ERECT shaft near the base.
  • Mark where the ends of string meet.
  • Lay string flat and measure the distance between the two marks with a ruler.
  • Proper Penis Measurement

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