These worked great!  I originally ordered two sets not really sure how I'd feel about them.  They install super easy and are easy to break down for when we get ready to mow.  I ordered an extra 2 sets to make the area super big for my pups to have lots of room to safely roam around the yard.  Love the flexibility to keep them up all the time for the pups to go out and play but also like the ability to take them down and that they give us a 'fence' for safety without overwhelming the yard.  Great buy!