Our pet cart has two front wheels which can be rotated 360 degrees, the rear wheel with brake, let this durable 4-wheeled stroller makes for a safe and smooth ride whether you are taking a quick stroll around the block or a jog through the park. It has steel frames that make the product more durable, the stroller is foldable which can be storaged easily and save space, the two front windows and back window has zippers, which can conveniently get your pet in and out, providing extra ventilation.