Kurgo Dog Seat Belt Pet Safety EASY INSTALLATION: Zip line can be attached between any two fixed points in your vehicle (e.g. two seatbelts, side ceiling handles, or in cargo area of an SUV) ELIMINATES DISTRACTED MIND FROM DRIVING: Keeps dog out of front seat and prevents dog from jumping from vehicle when door is open; still allows freedom of movement WHAT'S INCLUDED: Package includes zip line, adjustable leash/tether, and two carabiners- a large one that moves along the line itself and one on the end of the leash RECOMMENDED USE: Best if used with a dog car harness, such as Kurgos Tru-Fit Smart Harness (sold separately) LIFETIME WARRANTY: Product comes with hassle-free Kurgo Lifetime Warranty against manufacturer defects when purchased from authorized dealer