That coyote roller is good for dogs that go over the top, but what my pit bull was doing was testing the top edge of the wire cloth part and finding where there weren't enough wire loops to hold it onto the top bar. She was pushing against the cloth for a flexible place where it would sag a little and scooting over it but under the top bar. I went around the yard adding more clips to the top bar and cloth and still she got out. Other times she went under the fence, and on one occasion she scooted between a chunk of wrought iron fencing that I had wired against the cyclone fencing to block a hole. She wiggled through and did a sharp left turn at the hole and she was OUT. The Invisible Fence with its training and correction collars is perfect for this dog--she doesn't approach the fence.

Electric fences are not allowed in my town in any way, shape or form. Borders or inside the yard.

SRS