There are basically two types of surgeries a guy can get to enhance his dick. On the one hand, a doctor can slice the tendon that attaches the dick to the pelvis, thereby creating what usually amounts to an extra inch - or at least the appearance of an extra inch. The other surgery adds girth to the dick by adding fat around the cock, like reverse lipo.
It looks like the star of Greatest Girth, Bob Low, got the reverse lipo surgery done on his dick and on his nutsack. As a result, his dick doesn't fit very well into the three girls he bangs in this motel room-budget release.