How to Measure for the Base Ring

To ensure the perfect fit for your chastity device, measuring the base ring accurately is essential. Follow these simple steps:

1. Get a Measuring Tool
   Use a flexible fabric tape measure (like those used for sewing). If you don’t have one, use a piece of string and a ruler.

2. Measure the Circumference
   Wrap the tape measure or string around the base of your penis, behind the testicles (around the thickest part at the base). Make sure the tape or string is snug but not tight or uncomfortable.

3. Calculate the Diameter
   Once you have the circumference measurement, divide that number by 3.14 (π) to get the diameter, which corresponds to the ring size you’ll need.

Sample Calculations:

Use the diameter result to select the base ring size that fits you best.

If you’re unsure, feel free to contact us for assistance or order a free ring sizer if available.