To further expand on coach
@huge-girth explaination,
Length Master is used solely to lengthen the penis.
However, an element of the
MityVac uses to lengthen the penis, roughly around 15% to 25% causing a smaller and slightly snug fitting
cylinder. By compressing the penis shaft and forcing the tunica to elongate under pressure, you can gain length, but it's not as effective as the
Length Master. However, the
cylinder expands the penis shaft, keeping the penis nice and uniform during the lengthening process through a combination usage of the
Length Master and the
MityVac, with a snug fitting
cylinder.
Since your base is 5.25in in circumference, the diameter is 1.7in-ish. The next size diameter up is 1.75in in the MOS Shop. The length should be at least 2in longer than your erected penis length for head space buffering and expansion.
The larger the diameter you go up, the more it will focus on girth and not length.