How can I make barriers for my virtual wall robot vacuum?

Is this the style of barrier you are looking for to fit your vacuum?

I found it on ebay.

I have never used a robot vacuum, but for the areas you want to build a "wall" could you put a line of shoes or something handy in your home that is sitting close by? We remove our shoes/boots at the door and sit on a bench so they are always handy is why I mention shoes. Everyone has them in the home, but not necessarily handy. Anything you have you could put down for a temporary fix while the robot vacuum runs? Maybe get the kids to help set it up and take it down? Just a thought, hope this helps Lisa.

Mine came with a strip to lay on the floor in open areas and it will not cross it. It turns and goes a different direction.