Pilot Razor Point II Marker Stick Pens, Point, Black Ink, Dozen Box (11009)

What is the difference between Pilot Razor Point and Pilot Razor Point II ?

So according to description, this pen is part of a 12 pack? Is that the case?

does it bleed through to the other side of the paper? Will I be able to write on both sides of the paper?

Can it write over acrylic paint?