Anne - Yes, they are cone shaped. But that hasn't been a problem for me when the plants cover it. It might actually help the plants because there is more room inside the cone so there is more airflow. Less fungus issues perhaps? I don't know. I just know that tomato cages work well for me and I don't have to deal with trying to cut wire. Just a suggestion for those who find cutting wire to be difficult. The one downside to the tomato cages is the height. Probably not as tall as your wire fencing panel.
