I absolutely loved this pet pen.  Good strong material, great size.  Liked that it came in many colors to choose from.  The only reason I gave it four stars instead of five is because I wish it had some form of clip on cover made of the same material.  My puppy, even though too small to jump out, after one day learned how to climb out of it by climbing up at the corners. I then purchased the mesh top for it but since it didn't fit nice and tight and snug, he was once again able to climb up the sides and push through the mesh.  So, after some thought, my bag of bungee cords that I rarely used came in super handy.  I was able to attach them to the Velcro straps and tie to any area of the pen and make the mesh nice and tight and not be limited to where the Velcro straps would reach.