Pet Dog Cat Seat Belts, Car Headrest Restraint Adjustable Safety Leads Vehicle Seatbelt Harness

I use these to keep my German Shepherds from jumping out of the car - I actually use a clip to secure them to a ring that I have in the back of my car - I found when I clip them in to the seatbelt they most always step on the seatbelt button and are able to unclip themselves but they work fine with my modified solution. It is pretty light weight so I think if one of my dogs decided to pull it may break with a large dog but would be excellent for smaller dogs.