This unique platform slides into your trailer hitch receiver and conveniently rotates beneath the car when not in use. This unique, hitch-mounted step is perfect for your pet, and perfect for you too. Give your dog an unassisted boost into the back of your SUV. Step up to reach the roof of your car, van or SUV. Use the platform as a temporary seat to lace up your hiking boots or as a shelf to set your backpack on while you check its contents. And when you're ready to hit the road again, just rotate the step beneath your vehicle for storage and travel. -Install once--step twists under car/truck for storage, with no need to install and remove for each use -Fits 1.25-inch and 2-inch hitch receivers and allows for 6 inches of height adjustment -Fully assembled out of the box--simple and easy to use -Platform has a non-slip surface The following vehicle's will need the Extension bracket item 3053. 2006-Current Tahoe, Yukon, Escalade, and Pathfinders. The 2014-Current Jeep Cherokee will also need this bracket. A minimum of 16” ground clearance is required from the lower-edge of the receiver. Twistep does not fit a 2019 Subaru Ascent and most mini-vans due to either the bumper configuration and/or ground clearance.