Kurgo Auto Zip Line Leash/Tether - Black/Orange - The Auto Zip Line is, you guessed it, the world's shortest dog run. Mountable between opposing seat belts, above-door handles, or any other fixed point in your car or otherwise, it keeps your dog in the backseat (where you need her to be) but free to roam, all while protecting her from her own worst impulses. Package includes zip line and tether Zip line can be installed between any two fixed points All steel hardware Quick and easy to install Tether can be used as a short lead when getting dog in and out of the car