How to measure penis size and choose the right condom?

At the thickest point of a fully erect penis,
  1. Measure with a tape/rope/ penis measuring stick around a circle
  2. Divide the value by 2 to get the width.
If you choose latex/PI condoms(SKYN), due to the high elasticity of the material, you can choose -2mm width condoms;
If you choose PU condoms (such as 001), Select condoms with the same value.


The circumference of Xiaoming's penis is 108 mm, which is 54 mm after dividing by 2. He should choose a PU condom with a width of 54mm, or a latex/PI condom with a width of 52mm.