1 dribble enters to set up their defender for a possible on/ball from 4. As 2 is clearing out to the opposite corner 4 sells the on/ball for 1 with the hopes that X4 will step out to hedge. 4 breaks off, or slips, the on/ball and gets separation from X4 for a possible 3.

Immediately after 4 slips their on/ball 5 follows up by slipping another on/ball, again with the hopes that X5 steps out to hedge. If 1 didn't pass to 4 fading for a 3 they will look to hit 5 slipping down the lane line. A lot of teams feature sets that have a slip followed by an actual on/ball but in this case both posts will slip.