Majority of the penis size at William Higgins don’t go beyond 7 inches

If you look at the profile of the guys at William Higgins, majority of the penis size were measured at 6 inches & below like their latest guy.

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It's not often that the penis size of their guys go beyond 7 inches like Jeremy Robbins, Pavel Sora & Mojzis Kral.

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The dicks that I thought was big was measured by William Higgins at 6 inches like Bohus Macek.

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Yet, Boy Fun measured it a 8.5 inches.

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So, how does William Higgins measure the penis size of their models?