Safe and Secure: Attaches to your dog's harness using a durable stainless steel carabiner clip that holds up to 725 lbs. Quick and Easy Installation: Clicks directly into the slot end of your seat belt buckle and can be easily switched from car to car as needed (seat belt metal tongue measures approx. 7/8” wide) Fully Adjustable: Dog seat belt can be extended from 15”- 22” (measurement includes carabiner) for a broader range of movement Universal Fit for Most Vehicles: Tether is not compatible with Volvo vehicles and is not recommended for Ford F-series trucks Reduces Distracted Driving: Keep your dog in the back seat and out of your lap while driving Works with Any Harness: Premium compatibility with PetSafe Comfort Harnesses Our U.S.-based customer care team is ready to assist you with any questions or concerns via phone, email, or chat