Mr. S Premium Hand Pump

Safety & Sizing

Your pump tube should be large enough to allow the tissue of your member to expand, but not so large that it begins to pull your scrotum into the tube when pumping. Mr. S recommends a tube that leaves roughly a pinky’s width of gap between the outside of your member at its biggest size and the inside wall of the tube.

To find the right size, wrap a string loosely around your member at its biggest size and measure the string's length. Then use the following guide to help determine the cylinder size you need.