Exercise your dog indoors or out with a GoPet Dog-Powered TreadWheel. Gone are the days where most houses have large back yards and the family dog can run freely. The GoPet TreadWheel for Small Dogs features a cushioned, durable matted areas that protects your dogs foot pads as he stays healthy by getting exercise at his speed and timing. As outdoor spaces are getting smaller and people are working longer hours, often household dogs struggle to get the exercise they need.