Yes, that's the one. Take a pair of push pins, insert one into one side of the K7XX mesh "disk" on the very back of the headphone, and the other into the other side, then using those, turn the mesh itself counterclockwise a quarter turn. It'll pop right off. Then take out the foam pad and repeat the procedure in reverse to put the mesh back on.
3/13/16 at 11:01pm