Boy, when these first came out, you were paying about $150+ for one of these! And many were too small for my Cocker Spaniel. So I had bought a real baby stroller and converted it. needless to say, like some of the dog strollers, it was bulky, heavy, and did not fold down very flat, thus making storage and transporting a real pain. Some the carriage part of pet strollers is a kennel and does not collaspe at all, so then you are stuck with a stroller frame and a kennel to find a place in your car while you drive to your walk location. Prices have been coming down at the Pet stores, but still.. too small. FINALLY... I found an Ebayer who sells a wonderful Lightweight, completely Fold Downable, EXTRA LARGE capacity pet stroller..and get this, even with shipping...is cheaper than the pet store! Holds up to 40 pounds, and my cocker spaniel, 35 pounds, Missy Mocha,  has lots of room. So if you are looking for a great deal on a stroller for your pup this summer, check out X-Large Affordable Pet Strollers by ebayer eastcoast_wholesales_inc