The Bench block is more plastic than rubber so it's not very tacky.
The grooves, channels and cutouts help to stabilize the slide and frame when tapping out roll pins and flared hollow pins.
All but one or two pins should push out with little effort.
As a general rule...When removing pins from a CZ its a good habit to push all pins from the right side of the frame to the left.
In the case of this pistol; the factory trigger pin was flared so much on the right side it was easier to push the pin from left to right. AND, it didn't matter in this case.
97jj97kk97kI understand the limitations of a student budget... roll pin punches and roll pin started punches are not cheep.
Unfortunately, these are the best most reliable tools to keep your pistol finishes flaw free.