The Portablepet Twistep Dog Step is the best way to provide a step up into your vehicle for your canine companion. This dog step installs in your Hitch Receiver so it is always ready to help. Unlike a ramp or other step setup that you need to unload to use and then pack away again after use, this step up stays in place when you aren't using it to save interior space inside the car. It attaches securely to the hitch receiver of your vehicle and stores under the bumper when not in use. Holds up to 400 pounds on a Class III hitch.