More Happy Tails
I have two German Shepherds who have the run of about 19 acres thanks to Invisible Fence® Brand. They go outside using their pet door, and I never have to wonder where they've gone, because they are very attentive to their boundaries. I have watched them, hot on the heels of a squirrel, come to a dead stop when they approach their boundary. It is a wonderful feeling to know they are having fun but are still safe.