Got this cart for my GSD. His hind end is giving him some problems. His hips are fine, it's some kind of neurological problem. He's got a big heart, and is still very active. I got him this cart, and now he can chase and play with the other dogs without falling over. He's got little booties on his hind feed, he knuckles over and drags his feet sometimes, was wearing the hair off his toes. Just thought I'd share.