I don’t see pics there?!
I do read this :
“What is the achievable maximum length?
This is individual and is dependant on the length of the hidden part of the penis. The usual achievement is 3-4 cm. The length should be augmented by the use of penis stretching (weights or Penistretcher) . There are no absolute promises to be made.
So, they don’t make clear if they are speaking of erect or flaccid penis, use of natural PE is mandatory, and even in this case they say ‘no promises’.