Vacu-Tech - How to Measure your Penis for a ThickWall Cylinder

ThickWall Cylinder Size
How to Determine your ThickWall Cylinder Size

Measure your penis using the instructions below to pick a cylinder size from our conversion chart. With a correct measurement, we will manufacture a cylinder that fits properly and provides maximum expansion and comfort.

1. Wrap a string around the ERECT shaft
near the base.

2. Mark where the string overlaps itself with a pen (see blue arrow).

3. Lay string flat and measure the distance between the two marks with a ruler.

This ruler image is an example only. Do NOT use this onscreen image to measure. Use your ruler.

If Your Measurement is:	Order This ThickWall Cylinder Size:
3 ¼" to 3 ¾"	1 ¼" x 9"
4" to 4 ½"	1 ½" x 9"
4 ¾" to 5 ¼"	1 ¾" x 9"
5 ½" to 6 ¼"	2" x 9"
6 ½" to 7"	2 ¼" x 9"
7 ¼" to 7 ¾"	2 ½" x 9"
8" to 8 ½"	2 ¾" x 9"
If your measurement is not listed here - Please Contact Us

NOTE: Be sure to use string to measure circumference. A tailors tape or flexible ruler will not provide accurate measurements. Standard cylinder length is 9 Inches. Please measure accurately as cylinders cannot be returned or exchanged for health reasons.

Flared Cylinders
Click here to determine your correct Flared Cylinder size.

Cylinders for Penis & Scrotum
We have a variety of sizes to fit your needs! For more information
call our Customer Service line at 1-650-738-9500.

Please measure accurately as cylinders cannot
be returned or exchanged for health reasons.