Anybody that has cared for a tortoise outdoors knows they like to wander. I have caught George, several times, pushing at the gate that leads down to the driveway and street. Not wanting her to become a speed bump in my urban neighborhood, I had to devise a way to prevent her escaping. This barricade stops her for now. However in a few years she will be able to push it right over. She could grow over 100 pounds in less than 10 years. I'll reinforce it when necessary. Full grown Sulcata tortoises have been known to push over a chain link fence if they want to get to the other side. Or dig under it. They are very strong and they love to dig.