The PetSafe® Happy Ride® Dog Zipline allows your dog a safer view while on the go. The zipline is simple to install and works with your Happy Ride® Safety Harness to prevent driver distraction by giving your dog mobility in the backseat while keeping him safe and secure. The durable, nylon zipline adjusts to fit most cars, trucks and SUVS. The PetSafe® Happy Ride® Dog Zipline is just one of the ways that we help you and your pet live happy together™.