Play fences are generally pretty safe. The things you want to watch out for are sharp edges, areas where your child could get an arm or leg stuck, or the attachments that could potentially pinch little fingers. Usually, fences are specifically made so that these things aren’t a problem but read the reviews ahead of time to find out. Also, make sure your fence is completely stable and strong enough to contain your child. They could get hurt if they were to knock the fence over. Always try to supervise your child when they’re in the play fence, or at least check on them often, and you should be fine.